Pull Tab Belts

I have been going for a three plus mile walk every day but the rain and cold the last few days has put the kabosh to that. While I am walking I pick up cans to get the pulltabs. I suffer guilt from not picking up the whole can but I could not carry all I find. You would think someone would be picking them up since aluminum is selling for seventy cents a pound now but no one seems to do it. I have only had one mild dog incident and my spray bottle of ammonia sufficiently discouraged the “puppies”.