Calls alot when your not available/out.  When you finally do get him on the line he does one of three things…

• plays dumb and pretends to not know whom he is calling.
• knows what he is calling and pretends he had no idea that it costs money (he thinks its a free chat line date line)
• he is all for the dirty chat tries to flirt you up and keep you on as long as possible without paying and hangs up when you insist upon play to play.

this dude is a manipulative time waster. And he loves to call when your not there or on the phone with someone else. Seems to be his favorite time to call.  And he will call every PSO in your company pulling this same behavior. I would suggest pre-emptively blocking