Calls or FaceTimes more than once with minimal to no response. Sends selfie of mans (presumably his) face. Will not respond to "Who are you?" and may expect you to guess. May be a prank, may be a stalker, may be a wrong number issue. It has been made clear I do not know the man in the selfie, and have asked for identification multiple times. Caller type unknown for the fact I don't know who the guy is, or what he is doing exactly.