It seems we are all indignant about the amount of litter being dropped and if we all think the same perhaps some sort of thing can be done...I was on my bus going to work about 15 years ago when a young girl got on and proceeded to eat a packet of crisps when she got off in front of me she tossed her empty packet on the pavement ,I was incensed ,picked it up and gave it back to her with a few words ,she took it off me and stuffed it in her pocket,I have no idea what she did with it after but it made me feel better.
I was telling my work colleague about this who said her husband had followed a neighbour who dropped his chip polystyrene box to his house and pushed it through his letter box..You never know if we all make a big enough fuss it may be like ,no seatbelts,smoking in the workplace which were all once commonplace but now unthinkable.