It's the ultimate morality test.
You have a friend visiting. You're playing some games. Do you give them the slightly-dodgy third-party controller with a sticky button?
If your answer is no, you're either an angel, or you're lying. Because we all know if it was down to the official controller or this, there's no way you'd be releasing your grip on the real thing.
What..what even is this? And where can I get one for when my sister visits?
Edit: Turns out this is a pretty sweet controller - designed to be played with one hand! Thanks to Bradley Paterson in the comments for the link.
Edit 2: here's a video of it in action - cheers to @waffleking for sharing below.