you're supposed to fold and recycle it...
no trash can, bag, or shoot involved
there are these new things called recycling bins they fit in there!
Pizza boxes are not recyclable. The grease from the pizza can contaminate the entire batch of recycled cardboard. Good job on the sarcasm. Keep up the useful feedback.
You could always recycle them.
In Australia the boxes fit into the garbage bins perfectly :)
How about you try folding it.