@aussiefester could be true...same as when someone gets electrocuted the hands clamp in a fist...therefore it is best to test if something is receiving voltage with the reverse of the hand and not with the inside...otherwise the tension itself will make you grab the object with electricity. Regards from Spain
Yep - an electrician in a former life - I've been smacked in the face more than once when my hand is thrown off of a live wire...
Thanks for the up-vote.