Motorist: The light just turned yellow.
A: Everyone knows a Mercedes Bends!
Lock them both in the trunk of the car for an hour, then open it up and see which one of them is happier to see you.
We're not sure, they've yet to see the light.
A Christmas tree. Because they're lit.
My Wife... Turn sideways and look in the mirror!
If you are stuck at a red light, its the time that it takes for the occupant of the car behind you to honk his horn when the light turns green.
Princess Diana can't stop either
Invite two of them.
Buckle Buckle
Motorist: Your siren lulled me to sleep.
Because when people fall off of 'em, they yell AAAAAAAAAAAAAAAAAALLLLLLPPPP!!!!!!!!
Stand in the middle of the street. If someone yells, "hey, get out of the street" you're in the US. If they yell, "get out of the street, eh" you're in Canada