Although there were gate doors that would fall of their hinges if you hit them at super speed. 
That was always fun.
You could also move up to and push the gate doors until they started vibrating on their hinges, and if you were careful about it (push too hard, and they would pop through your character and swing away), they'd vibrate more and more until they fell off. You could do the same thing with the fancy phone booths in Faultline and elsewhere.
