This T-shirt has the following problems:

1. If you warn me that you're sarcastic, doesn't that blunt the effectiveness of your sarcasm?
2. When in the Looney Tunes canon was Daffy Duck sarcastic?
3. In claiming that sarcasm is "just another service" you offer, how are we supposed to know whether or not you're being sarcastic?
4. Well... it sucks.