Someone with such behavior seems really attached on slot machine or addicted in gambling to poo right there without even thinking that there's a cctv or someone could see him for doing that. Being anxious and pressure for the outcome of the game can sometimes lead to ignore the place where you are or whose with you because we are too focus on what we do, this one is an example.
This can happen to us, and there are situations that will not let us do a thing that we normally do because of an urgent matter that we are doing, maybe the guy just hit a jackpot and he cannot take an urgent nature call and just did the unthinkable, it's not only in gambling I have seen this happen to gamers too.
But this is not just for gamblers and gamers , this cam be for others that cannot hold their inner feeling and reacting this way in any circumstances that triggered.