…comes from little Mark. Telling him that we’re on our way to Luke’s fifth birthday party, he asks:
“Will there be playing?”
Yes Mark, there’ll be playing.
“Will there be games?”
Yes Mark, there’ll be games.
“Will there be cake biting?”
<silence>
Yes Mark, there’ll be cake biting.
(WTF?)
Update: This site is now result no. 2 on google for cake biting, just nudged out of top spot by cakebite.com (potentially NSFW galleries)

That’s a very unbitten looking cake in the picture. I’d hate to think you were lying about the cake biting… Hope things are going well for you.
Rest assured, after Luke finally blew out the candles (took a while), there was lots of cake biting, just to make sure the sugar levels didn’t drop below the ‘manic’ level.
You’re not accusing me of telling porkies^h^h^h^h^h cakies, are you?
Not at all – would never accuse you of lying. Just keeping you honest is all