Not me, Bill.

Three reasons:-
1) I restrict my voluntary efforts for those who need help, but are unable to pay.
2) I like to see myself as a practical bloke, not an "ivory tower pipe-smoker". That is, I like to crack on and get the job(s) done, rather than spending endless hours worrying about the
minutiae of this or that leakage current (and all the rest).
3) Many others are more qualified than I in such matters (some of whom we see here on the forum from time to time). Best leave it to them, I reckon.