Jack Black used to put Coco Pops up his butt.

The ‘Kung Fu Panda’ star – who recently became a father for the second time
– admits he found unique ways to entertain himself when he was a child, and
found the chocolate-flavored cereal highly amusing.
He said: “I also put Coco Pops in my butt. Why? For comedy and experiment. I
was a scientist and I discovered you could put a lot of them up your butt.”
Jack, 38, recently revealed he is desperate to lose weight so he can star in
more nude scenes.
He said: "When I saw my rear end in my nude scene in 'Margot at the
Wedding', it actually had a double chin. I've joined a gym because the next
time you see me naked I'll be trim."
Jack also said he wanted to slim down because he was getting worried about
his health.
He added: "I want to feel good too. Now if I eat a cheeseburger and fries,
it tastes so good at the time and then right after it's like, 'What did I
do? Why?' "

Image WENN