True enough. Didn't think of it as I'm used to a recycling system where you don't crush them. In fact, if you did, you wouldn't get your deposit back.

But it's one of the few benefits of plastic bottles; if I don't finish it, I can re-seal it. It's not about spilling, it's about preserving.

Sorry, I missed that. That's actually really interesting and the only good answer I've seen so far; people doing harm thinking they are doing good. Still hate it though... The cap gets in the way of drinking.

I understand that's the reason. My point it, I'm surprised and amazing this doesn't happen automatically already. I've never not put the cork back on a bottle when it was empty.