no, but if you use it in the rain, and the inside of the barrel gets wet then it can mess up your shot.
iv been playing for years and have yet to hear of a board shorting from being in the rain, basically you have to dunk it in water and even then it is questionable as to if it will short out
It gets wet.
Keep them in a cool, dry environment like a basement. A wet or hot area will soften them, and trying to freeze them will make them brittle both of which will break in your gun.
Wet cloth.
For a spring weapon you have no electronics to be worried about. The only thing you really should do is open the gun up and make sure that no internal or external metal parts (check the spring!) are wet. This is simply to avoid corrosion.
no
is a percocet still good if it gets wet
you can spat the paintball and then take a wet rag towel and wipe it off. If there is still some paint left you can paint over it or stain over it.
Then the ear gets wet...
A towel gets wet while drying someone's body.
A mixture of flour and water can be cleaned with some wet or dry paper towels. If the mess is large use a wet/dry vacuum to suck up the mess.
It sinks. And it gets wet.
It may stall and refuse to start if the ignition gets wet.