That confused me too. You'd have to see the full video.
Basically it's a public bathroom above a roller coaster ride. It's not actually going to do anything in the game, but in reality you could imagine some problems.
I guess its kind of romantic...
Walking along the street someday and you meet eyes with that girl that you met once. You hit it off with her at a party and you were pretty upset you forgot to get her number. She smiles and starts walking your way. You are about to make that witty pickup line that made her laugh till her eyes water, but you notice that something has embedded itself into your pelvis. As the realization of the pure coincidence of the situation dawns on you, you meet her eye one last time and with a soft, knowing smile you hit her with that witty pickup line a second, and even funnier time.