I don't believe black bears are aggressive -- that being said, I wouldn't try to tickle one either. Here are some writings from a quick google search article I found: The full article can be found here:
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http://www.runtheplanet.com/trainingracing/safety/blackbearsafe.asp
Bear encounters
Encounters with aggressive bears are extremely rare. Attacks are even rarer. The tips in this article will help prevent bear-human conflicts, but it is always good to be prepared for an encounter. There is no fool-proof way of dealing with a bear encounter (each bear and encounter is different) but the following responses have worked in the past:
If you see a bear in the distance respect the bear's need for space – try to make a wide detour or leave the area.
If you suddenly encounter a bear at close range remember that bears may act defensively if startled, or if protecting cubs or a food cache.
Remain calm. Do not run. Identify yourself as human by talking in low
[COLOR=blue ! important][COLOR=blue ! important]tones[/COLOR][/COLOR], with arms outstretched. Move upwind so that the bear can catch your scent.
Don't crowd the bear - leave it a clear escape route and it will probably exit.
The bear may "pop" its jaws or swat the ground while blowing and snorting. Watch the bear but avoid direct eye contact (a sign of aggression).
A bear may charge in an attempt to intimidate you – usually stopping well short of contact.
If a bear actually attacks in a "sudden encounter" situation, you should fight back aggressively with any available object. Note that different responses apply to black bears, grizzly bears and
[COLOR=blue ! important][COLOR=blue ! important]polar [COLOR=blue ! important]bears[/COLOR][/COLOR][/COLOR]. If a black bear actually attacks, the standard rule is to fight back aggressively as this will encourage the bear to "give up" and leave. It is deadly to do this with a grizzly; the best chance is to "play dead".
If a bear follows you
Bears very rarely exhibit predatory behavior (following you before attacking). If a bear follows you, try to be intimidating - make lots of noise, appear as large as possible, throw rocks and sticks. Let the bear know that you will fight back if attacked and that you are not easy prey. If the bear continues to follow, place your pack or other item down as a distraction. During an offensive, predatory attack such as this you should fight back.
Remember, bears are far more likely to enhance your wilderness experience than spoil it. Knowing how to interpret their behavior and act responsibly is part of the thrill of sharing
[COLOR=blue ! important][COLOR=blue ! important]forests[/COLOR][/COLOR] and mountains with these amazing creatures.
True or false?
A bear that stands on its hind legs is preparing to charge.
FALSE. A bear that is standing on its hind legs is usually trying to identify you by scent or sight. Bears rarely attack, but when they do it is on all fours with their heads down.
A bear's sense of smell is better than a dog's.
TRUE. In fact, it is one of the most sensitive noses in the animal world.
Bears are naturally aggressive towards humans.
FALSE. Bears are shy, retiring creatures who only act aggressively as a last resort – usually when they feel threatened.
The best way to get away from an aggressive bear is by running.
FALSE. Bears can run as fast as a racehorse for short distances, and running may trigger their chase response.
Bears cannot run downhill.
FALSE. Bears can run faster than any human – in any direction.
When hiking or running in bear country, it is good to make noise to warn any bears of your presence.
TRUE. Making noise will alert the bear and give it time to move out of your way without feeling threatened.
And here is your state's policy on black bears and their sitings:
pulled from:
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http://home.mdwfp.com/wildlife/species/bear/default.aspx
Welcome to the MDWFP Black Bear Program Website Mississippi is actually home to two subspecies of black bears. The American black bear (Ursus americanus) occurs in the more northern counties of the state and is listed as state endangered. The Louisiana black bear (Ursus americanus luteolus) is found in the southern half of the state and is listed as federally threatened under the terms of the Endangered Species Act. The two subspecies of bears are basically indistinguishable to the naked eye. The MDWFP Black Bear Program was started in June of 2002 at the Mississippi Museum of Natural Science. The initial focus of the program was to conduct research on Mississippi black bears in an effort to learn more about this endangered species. At the time of the program’s inception, it was estimated that there were less than 50 bears residing in the state. Today, estimates of our bear population have more than doubled. This population increase is due primarily to the recent appearance of female bears in our state which has led to the births of 11 cubs in the last four years, something not documented in Mississippi in the previous 40 years. Additionally, general sightings of bears have increased dramatically all over the state, likely due to dispersing bears from populations in neighboring states. The Black Bear Program is now housed within the Wildlife Bureau of the Mississippi Department of Wildlife, Fisheries, and Parks and continues to conduct research and educate the people of Mississippi about our black bears. Another primary objective of the program is the prevention of conflicts between bears and people. If you are experiencing problems involving black bears or want to report a recent bear sighting, please contact: Brad Young Black Bear Program Leader 601.432.2242 brad.young@mdwfp.state.ms.us