I was on carnival spirit in 2009 and they have a lounge called "the jungle" were there were like huge trees, giraffes and zebras mounted on the walls and my friends and i were walking through it and some random guy started chasing us and some guy ran into one of the giraffes and it fell over and broke in half.. somehow they found out who knocked it over and he got billed but it was very funny.
Or i was on carnival valor in 2011 and on the last night a lot of people decided to drink and this guy was dancing with me and all of a sudden he threw up. I walked him back to his room and got him dressed and i told him to drink water. I grabbed a bottle of water and gave it to him and he started drinking it but it smelled like booze... so i smelt it and it was VODKA.. and the guy starts coughing and crying and saying "i'm so sorry" and then proceeds to throw up again.
i've got more stories if you ever wanna chat