In my 31 + years of EV ownership and use, I have never fried a plug or receptacle and have never been shocked by the AC line. Even in the rain, snow, dog peeing on the cord, etc.
One way to avoid a problem such as yours, is to make sure the cord connections (like your water proof) going to, and at the car are dry. The final (and I stress final) plug-in should be at the source. (Wall outlet) There is usually a spark when plugged in, and this will eventually wear out that connection, and it is easier and cheaper to replace the wall outlet than the one on your car.
If you do feel a tingle or worse, when you touch the car, there is either a ground fault somewhere in your high voltage system, or the charger is not properly grounded to the car. Find the source of the problem and fix it and stay safe.
John Emde