Find something to be used as a weapon then find your mugger

Nice paint skillz. =P

Read all the stuff (that piece of paper and whatnots) and then rummage through the dumpster--preferably with a stick or something.

Read the paper, and look at that thing beside the dumpster.

Spazz out because you just lost your tickets to the new japanese band playing at the concert in half an hour. Due to this, you scream and repeatedly smash your head against the dumpster, causing you to pass out yet again.

-Neku-

Carefully check the banana peel.

Takuma Nuva

Improvise a hang-glider from my hair and stuff from the dumpster and fly around looking for the guy who took my stuff! >

Take the business card-like thing to the right of the dumpster and slip on the banana peel, losing consciousness again.