One example is early in the movie when a fake Batman asks him what is the difference between them and he says "I don't wear a hockey mask" (which was a bad line in the first place, it should of been something like "I don't use guns" or "I don't kill people"). However I had no problems understanding 99% of his lines.
He actually said; "I'm not wearing hockey pads." His point was that he has the means to do what he does relatively safely and professionally, for lack of a better term.
Safely for him, that is, not the many civilians who may have been injured by flying shrapnel from the parked cars he blew out of his way while riding the Apple Bat-Pod.