Haha, seagulls are a pain.
I remember on our year 7 high-school trip to Philip island, on our last day heading back home we stopped at a beach for lunch. Seagulls where everywhere.
We where told not to feed the seagulls, but not everybody listened. One of my friends threw the sandwich he didn't want to eat at a flock of the little bastards. They where fighting over it as though they where in the Roman Colosseum, and whoever lost, died.
This was completely awesome, it caught me totally off guard, too. They all started stabbing each other with their beaks, straight through the neck and left there to die. After it had finished, and the sound had died down, there was just a pile of white feathers and white sacks which used to be birds.
And that was the coolest god-damn thing I've ever seen those dumb birds ever do.