From "Numb3rs: Robin Hood (#4.5)"
Det. Gary Walker
[Don and Walker are driving down an alley after a suspect
] Hey Eppes, you ever play Polo?
All right, here we go! Giddyap!
[steps on the gas
[Walker opens the car door so it slams against the bad guy as they drive past, they get out to cuff him
] Well, that's your sport, Gary! The boy's out cold!