one of te people who USED to leave trash was a friend of mine.
Couple of years ago we went on an alpine lake mission just scalin fish left and right.
I caught him throwin a can out the window and gave him the ultimatum to
1 pick it up and any other trash he see for the next couple of miles (he had to walk it by the way)
2 walk home
he picked #1 and didn't talk to me for a couple o months but when he did he admitted he was wrong and since this day I see him being a model citizen
so I encourage you to pressure your pals (not in the same manner I did)not to liter!!!!!!!!
I admit it seems harsh but trash pisses me off