Leonardo DiCaprio is dishing out dirty secrets from the set of "The Wolf of Wall Street!"

The actor stopped by "The Ellen DeGeneres Show" to talk about filming the infamous ham scene, where Jonah Hill's character chokes on a piece of pork.

"We were doing this CPR sequence and you know the big challenge that day we had to do 70 takes because they couldn't get this ham to stick on my face," Leo explains to the talk show host. "And they had to put K-Y Jelly and there's literally a guy there behind this giant window with a plastic spoon just flicking ham on my face all day long as I'm doing this insane sequence. But it was almost, it was one of the most surreal things I've ever done in my entire career."

Well, using K-Y Jelly has to be better than being spit on all day!

While working with ham may be a bit unsanitary, Leo has had much more dangerous days on set -- including an encounter with a shark!

"I had a huge fear of sharks and when I did 'Blood Diamond' in 2006, I actually got stuck in a cage with a great white, which was awesome," DiCaprio reveals.

Check out the clip above to hear the rest of Leo's shark survival story. 

We love hearing Leo's behind-the-scenes set stories. What do you think of his K-Y Jelly confession? Sound off below!

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