bq. Designed to be difficult to remove without special tools, the "Youscrew™": invites users to not use it. Install these screws in public spaces to add safety, security, and a friendly reminder to not touch. Featuring either an 82 degree bevel or flat head, and machined from 303 stainless steel, these screws come with a class 3A fit for seamless installation.

Normally this is meant to be installed surreptitiously in public spaces, but in this case is installed in our apartment.