People like the young lady pictured above are why we need to counteract litter-bugs. Granted, she only dropped a coffee cup lid, but she did it in such a deliberate manner - and so close to a trash can. Today it's a coffee cup lid, next week it could be dumping a bag of household or construction garbage into the park at 3 AM.*
Luckily, Sunset Park has the perfect antidote to litterbugs masquerading as coffee drinking joggers: Every Sunday an active and enthusiastic group of residents cleans up litter around the park. Meet in front of the Rec Center at 9:30 AM this Sunday to join in. Check out their website for more details.
* Please note: this example of a "slippery slope" in littering is pure speculation and should not be taken as fact.