Do you pick up hitchhikers?

I was outside of town on a lonely dark section of road and saw a guy walking along the road and he stuck out his thumb as I approached, so I hit the brakes and he hopped in saying "Thank you sooo much, it's cold as hell out tonight".

A couple of minutes later he says "Most people won't stop for me out here because they think I could be a serial killer or something.

I just laughed and said "Now what are the chances that way out here in the middle of nowhere two serial killers would end up in the same car?"