Dispose of your chewing gum properly/thoughtfully.
I would suggest keeping the wrapper it came in, place the used gum in that (just in case the bin you put it in does NOT have a liner), then find a bin.
The road, footpath, stuck under a desk, and especially a urinal is NOT an appropriate place to dispose of gum.
I mean, c'mon you animals, do you expect a cleaner to fish that out of a urinal with their fingers ?........friggin dregs of society.
Those people should be flogged !!!