No Parseltongue, please
The last thing anyone wants to see in a public restroom is someone’s snake. No, we don’t mean a metaphorical snake! Get your mind out of the gutter! We’re talking about an actual snake, a potentially venomous creature that could strike at any moment.

Thankfully, this restroom snake is behind glass. It’s not like a snake could ever break free of its glass enclosure. That’s never happened in the history of the world, either in books or in real life, right? And there’s certainly nobody who can communicate in Parseltongue with a boa constrictor who was raised in captivity. Super-safe!