I don't know about the tolerance of acid burns; when I was an ironworker the uhh...I don't how to say it in English, chispas from welding and torching would eat up my shirt and I had these really worn out gloves that had a hole on the palm area and it really hurts, like, a lot. That self-hate pain you feel is mostly mental, yet palpable, but physical pain is unbearable. It makes me wonder...What is more painful: Mental or Physical?