Squirrel Chews Cigarette Butt

I am not kidding. This is a photo of a poor squirrel chewing on a cigarette butt in St. James Park, which is only 100metres from Buckingham Palace in England. Sorry, I should say one of several squirrels, for there were other squirrels doing likewise. I found it disgusting, to think that squirrels there would be chewing on cigarette butts (and what's left of the tobacco). And right near Buckingham Palace.