tgstation/-tg-station — pull request #6383 by kyrahabattoir (2014-12-14 23:20:03+00:00)
Title: Prevent using the hand teleporter from inside closets and when under the...

... influence of a chameleon projector.

https://github.com/tgstation/-tg-station/issues/6096
This was the simplest way to do it that i found, i don't think it breaks any intended uses of the hand tele, but feel free to prove me wrong.