You have always had a strange behavior, that of biting, you always bit your friends on the arms or shoulders, they never knew why you did it but you said you did it as a way of Show affection. Frank was distracted talking to Gerard, you were sneaky and bit him on the shoulder, he jumped and said

"Frank: "Stop biting me, I already have many marks from you"

gerad laughed and said

"Gerard: don't be exaggerated, at least you don't have so many in your arms"