ClashTalk RealTalk: How Do You Reply to Someone Who Didn't Get the Joke?

The Scenario: You make a sarcastic comment on a Gawker post. Someone replies in earnest. In the past, other commenters could be counted on to explain the joke to the earnest commenter, but that isn't a surety any more.

So, ClashTalkers: What do you do? Explain the joke? Dismiss? Ignore?

For reference, this is the thread I'm referring to:http://gawker.com/or-they-have-e...