I frequently hurl abuse at the tool excuse of a man that is Weymouth College campus security, we even have a nickname for him, Playground Patrol.
He's such a condescending douche that he deserves everything he gets thrown at him, he has this self righteous sense of entitlement that allows him to think he's superior to everyone around him, when in reality he's an arrogant arse.
Just before we broke up for the Christmas hols, I hurled a can of Silly String, it blew up, he was covered in the stuff, good giggle for certain.
However, I don't find it funny hurling abuse at cops as Keaton said, mainly because they, more often than not, put their lives on the line to keep people safe, they're just doing their job, that, and they can actually throw your arse in jail.