You bite people to show affection. your family and friends were fine with that, because they were used to it.

expect for your best friend Toby, who hated physical touch.

so when you first bit him, he freaked out until you explained why. at first, he was a bit freaked out, but got used to it over time.

Toby was talking to one of his friends (brian), when you came up behind him and bit his shoulder. Toby flinched and turned around, looking at you. "..seriously?"