Everything I’ve read, everyone I’ve talked to has said at some point the same thing:
Yer gonna get bit.
Rats, having poor eyesight and good noses will eventually mistake a finger for a treat or get irritated enough to give a “Feck off” nip, or they’ll get playful and apply some fang.
OK, well, not happened yet. Oreo and Trudy are pretty mellow. Even when grabbing a treat they’re quite polite about it – this is lucky because Trudy thought my thumb smelled like something I was trying to feed to her and tried to basically pick my thumb up in her mouth to take off and eat.
Oreo did something similar a little while ago. Either I had something nice on my finger or she was letting me know I was in her space and to vacate because she tried to get her teeth around my fingertip three times.
I’m guessing it wasn’t a threat nip because if she wanted me bit she didn’t have to go so slow about it.
Eventually they’ll catch me though and I’m not looking forward to it.