No, and don't ask me, just stay off my ******g wheel. It's rude, and dangerous.
If I'm out riding by myself, it's because I want to ride by myself. You want to ride in a group, go find a group. You shouldn't ask, and I shouldn't have to be bothered to answer.
Altho, having had it happen on occasion (without asking or acknowledging), I just ride them off my wheel, never see them again after that. It's funny, the people who would be able to hang, aren't the kind who would hop on a stranger's wheel in the first place.