So I'm driving down Interstate 680 in San Ramon, CA in the number 2 lane and I notice that there's a Cherokee in the HOV lane keeping right w/me 75MPH. So I look over and the passenger is holding up a dollar bill. I read his lips "Change?". So I roll down my window, at 75 MPH, and hold out my arm, but he shakes his head and says, "change first".
They laugh, I laugh, they speed away! 
