It's the right thing to do

It just lazy to leave it.

I've never thought about doing the other way around. It's just a matter of common sense!

I haven't been to the movies in a long time, but I always took my trash with me. It's the right thing to do and I always hated trying to step over someone's soda or popcorn while trying to navigate the narrow space between rows of seats.

I always try to clean up after myself. At a restaurant, a theatre, a beach, a park, elsewhere, etc. It is being respectful of others, the environment, and the world around me. Also, my past jobs included cleaning restaurant tables, theatres, stores, etc. I am teaching my son the same respect.

It is the proper thing to do.

A little popcorn may spill -- the staff can sweep that up later. Everything else gets carried out and pitched.

right thing to do