I had a Russian dude call my cell once trying to find two girls (can't remember the names). I kept saying I had no idea who he was or who they were, and he got all angry and thought I was trying to trick him or something.
Russian dude: Hey, is this [someone]?
Me: Uh, no, I think you have the wrong number.
Russian dude: Are [some girl] or [some girl #2] there?
Me: No, you've got the wrong number.
Russian dude: No, [someone #2] gave me your number. You must know them.
Me: Nope, I really have no idea who you're talking about.
Russian dude: Okay, quit this shit, get off the phone and find them.
Me: This is my personal cell, I don't know who you're talking about.
Russian dude: Why would [someone #2] give me this number if you didn't know [some girl] and [some girl #2]?
Me: Damned if I know, but I don't know anyone by those names.
Russian dude: Whatever punk, I don't know who you're trying to fool, you obviously know them. Don't lie to me.
Me: Yeah, right.
Then I hung up.