I used to love Yoo-hoo. I'd get it in those juice box containers. One time, the box seemed "inflated" like it was overfilled but, being a kid, I didn't think much of it. I stuck the straw in and took a big gulp. It tasted like fermented yeasty vomit. I can only guess something happened with the whey.

I probably wouldn't even like it anymore, but I haven't been able to drink it again since.

TL;DR Don't drink the puffy Yoo-hoo boxes.