Sarcastic Jesus?

The Christian Century of October 2nd quotes Ann Coulter as saying the Jesus used sarcasm and jokes to make his points. Can anyone think of a sarcastic line from scripture? Accusing, pointed, yes, but I can't think of anything sarcastic. Sarcasm, I think, is meant to undercut the other, but Jesus, even when pointing out people's sins always speaks with the other's interests at heart. Boy, she just doesn't get it, does she?