You are Pest.

As you step off of the subway and enter the elevator, you use your lower left arm to snatch a coin or two from the closest person to you, smirking to yourself as you take your place in the corner across from whoever they were.

You raised your head to see that it was Poob. Your..friend? Enemy? It was complicated.

Poob reaches into the back pocket, a confused look taking over their face as they realize their money is gone. You could say something.. or not.