I love tickles. The Tickle Monster is one of my favorites. It occasionally possesses Mom or Dad and is a riotously good time on my end. Although Mr. Tickles isn't allowed to play before naps or bedtime, we visit regularly, and I ask about him frequently.
Recently, I've discovered humor. Only, I don't call it humor or funny. During peals of laughter (possibly over my older friend Abby, being licked by a puppy, or during Curious George), I manage to compose myself enough to say, "It tickles." At which point Mom chuckles and says, "It tickles your brain, eh?"
I think she may be right.
Reappropriation tickles -- try it. Your brain will thank you.