Asshole. The word you're looking for is asshole.

I once knew a guy who was disabled and walked on crutches. Jobs got mad at him for being late to a meeting, and the guy replied "well someone parked in the handicapped parking spot, and it took me awhile to walk from a normal parking spot.

No joke, Jobs looks him (a disabled person) directly in the eye, and says "oh, that was me; I think the country built an excess of disabled parking spaces after WW2." To the disabled guy!!!