I wish they could find people who do things like this and throw them in jail.

It's Your Problem

If you purchase fast food, drinks, or anything that comes with removable wrappers, cups, or other packaging, you should at least be kind enough to dispose of those things properly. It's not that tough to keep something in your car until you get it home or until you get near a trash receptacle. I think "throwing stuff in the trash" is a basic skill that most parents teach their kids, although I have one prime example of someone not getting enough negative reinforcement about their behavior.

Not Their Problem

On no occasion is it right to not return your shopping cart, but at least when you're a complete jackanape and you don't do that, at least the problem is on the grounds of the person who owns it. When you take trash from point a. and deposit it in point b., you truly are an A#1 jerk. Have a look at this:

Let's Start Again

Our friends at DK certainly have nothing to do with this. The low-class, inconsiderate blockhead who did this is 100% responsible with no ifs, and, or buts, about it. There was NO REASON to take this cup and place it on this highly sophisticated A.T.M. other than to make it someone else's problem. This place is a financial institution and not a garbage dumb, and it's not great to have liquids this close by either.

If It Was You (Or Ever Was)

If you are somehow responsible for this, I'm going to need you to stretch your arm out really far (kind of like you did when you place the cup on this I.T.M.), ball your fist up like you just caught a fly, then swing it back and punch yourself in the face. It's the least you deserve.