My friend George Miller would always leave a huge tip even when the service was terrible. I'd say: "The service was awful, why such a large tip?" George said: "I'm being sarcastic."Made me laugh.
Also reminds me of the prefatory lines of the Rickie Lee Jones song Juke Box Fury:
Polly and I went to the circusNon-verbal sarcasm is even harder to pull off than the usual kind, I suppose.
Polly got hit with a rolling pin.
We got even with the circus
We bought tickets but we didn't go in.