Sorry to hear that. I can imagine how upsetting that must have been. I guess it would be kind of like really enjoying vodka, but then drinking too much and getting sick every time you taste it after that.

I think the thing to remind yourself of is that BDSM is what you and your partner agree upon. If the battery cables come out, explicitly say no and do what it is that you are comfortable with. You can still enjoy the spanking and tying up and stuff without having to go so far as what you described.