The real pain is the chewing gum. I'd favour a tax on the stuff specifically to pay for the equipment needed to peel it off the pavement.

Though spitting out chewing gum like that is a sign of a profligate and wasteful generation. We used to stick it in our pocket
when done, and liven it up with a Polo mint, when it was time to give it another chew.

"Does your chewing gum lose its flavour on the bedpost overnight..."