You're Only Human

You're walking down the street, thinking of other things when you stumble into a garbage can on the sidewalk and knock it over. What comes spilling out from under the lid?

Nothing comes out - the can was empty.
A pile of loose trash spills out onto the street.
Apple cores, chicken bones, and other raw garbage.
A well-tied black plastic garbage bag.

Source: Kokology - The Game of Self-Discovery