The place I was at you weren't even allowed a book about computers, lest you might gain enough knowledge to somehow access a facility computer and hack your way to freedom.

They had a computer lab, but it was only for Mavis Beacon. I found the C# compiler that's hidden away in the Windows directory and started teaching programming on the sly. Luckily one of the nuns at the facility took pity on me and bought C# Weekend Crash Course on Amazon (with the CD) and sneaked it through the security checks for me so I'd have a good reference to teach from.