S01E01 Why does a shower curtain seem to have an attraction to you while you're showering?

Have you ever noticed how the shower curtain seems to billow inwards, almost trying to hug you while you're showering? It's annoying, and it feels like some kind of weird force is pulling it towards you. This is a common and baffling experience for many. It's not that the curtain has a personal vendetta against you!