Don't worry about it. If anyone has ever pinched you, it probably hurt ten times more than a bite. Just don't worry about it, and if it ever happens, try not to jerk the snake, this can hurt it.

If you want to get over this fear, go down to a pond or creek or something in the spring, and flip over some rocks, and let a common water snake bite you.

So all in all, don't worry about it - and most of all don't be afraid of it! It is instinct to be afraid of these things, but remember, mind over matter!