Once when my frigate was in drydock, we had the firemain "Christmas Tree" let go at night, just outside the CIC bulkhead - with big cutouts for gear replacement. Soaked every piece of electronics with salt water!
Big surprise being rolled out of your rack on the barracks barge at zero-dark-thirty for "FLOODING" aboard ship - and knowing she isn't in the water!
So we pulled every piece of gear out of it's rack and put them in the shower to hose the salt water off - it was already soaked....... What a mess!