Same workplace, real story:
Technician puts a run menu on his USB pendrive.
Other copy that (true, it was handy.)
Move to a security PC at a customer. Insert pendrive.
Hee, no menu.. That is weird.
Coworker: Can you you try your pendrive?
Second USB pendrive fails to present a menu.
Grab a third stick. Test it in your own laptop -> Works
Put it in the security desktop -> it no longer works.