@forpeterssake @AnnemarieBridy

Downright spooky you should mention it. A few hours ago I was looking to dispose of a utility razorblade after a project, and the dispenser box wasn't the kind with disposal storage. Not wanting to dispose of it in a way that could injure someone down the line, I slipped it into the slot included in the back of our 1950s-era steel medicine cabinet.

I hope there's a kind of pocket back there to catch them rather than a pile of razor blades inside the wall waiting to injure the unwary demolition worker or DIYer.