When I was young, maybe 10 years old, a Rhode Island Red hen pecked me in the eye. I remember that it hurt, but fortunately there were no problems. I do remember that for some reason, the hen's name was "Dick" (short for Richard - unusual for a hen....).
I was reminded of this just now when my 6-month old white bantam pullet cheerfully scratched my nose. I was checking the new birds on the roost and my tiny bantam, obviously thinking I had treats for her, walking up and starting pulling on my sleeve. I bent down and she pecked at my face. There is a disadvantage to having very tame/friendly chickens!