The immediate impression from the question is that the crayfish is much more likely to be traumatized.
It's strong enough to hurt a bug but I don't think it's strong enough to hurt you, those teeth look kind of weak.
Sometimes
yes
my answer is it wont hurt them but try sticking to human body shampoo cause i use it and it doesn't hurt he guinea pig one bit but it bit my dad finger it doesn't like getting baths
noit doesn't hurt
only a little bit like a pin prick
yeah it depends of where and which finger you do it on.
You prolably dont hurt it is the finger and it hurts when you touch it.
== ==
Du that's why they have pinchers so then ya they pinch
no it doesnt
you put it on ice and deal with it.