Alamo
They set out to find out whether or not Ozzy had really urinated on the Alamo, but I don't think they ever really found any conclusive proof one way or the other. They found out he was actually arrested for "public intoxication" instead of public urination (in my state they arrest you for public exposure for this, and you end up on sex offender lists).
But the officers deciding to arrest him for public intoxication doesn't mean that he wasn't urinating somewhere inappropriately, whether it be the Alamo or somewhere else. I was surprised Jack and Ozzy both just said "Oh great, he never did urinate on the Alamo after all". I thought it was a strange conclusion to come to.