I would not want some randoms trying to rope me into their RP either, I only RP with friends as well for funsies from time to time. Idk why they had to try and drag complete strangers into their roleplay. To talk in character in the party chat with your friend sure, its whatever, just don't involve me in it.
People being really rude in this thread, the OP knows they didn't say anything and that if they had most likely they would have stopped. They are just asking for a little forethought from RP'ers before they try and pull complete strangers into their RP, people are responsible for themselves but it won't kill you to be a little considerate. Why you would feel the need to rope in randoms to your RP idk. It comes with the assumption that whomever you are trying to drag into it is ok with it and an assumption of consent is never a good thing xD