06/23/2011 03:17 pm ET Updated Dec 06, 2017

Louis C.K. Makes Leno Do A Spit-Take While Talking Drugs

Louis C.K. went on "The Tonight Show" on Wednesday night to promote the second season of his FX show "Louie," which premieres tonight. C.K. has a reputation as one of the most consistently entertaining talk show guests, and this appearance does not disappoint.

A highlight of his interview was C.K.'s explanation of why he doesn't drink much or smoke marijuana: Not for any moral reason, but simply because both make him sleepy.

C.K recently explained to Esquire why he continues to go on Leno's show despite being a former writer for Conan O'Brien and a comedian whose audience may not seem to overlap much with Leno's. "["The Tonight Show with Jay Leno" is] the highest-rated of all the late-night shows," C.K. said. "Plus, Jay puts me on whenever I want. I really like Jay, and he's always invited me to come on."

Check out part one below, and part two on Hulu.