How can a dretch hide inside the humans armoury?

[(Farmer)Azrael]

Once in Pushcannon, when I was angry with a player for repeated tk-ing, I switched to spectators. Then I went up to the ceiling and did !mix (to make him die; he was a human). The guy dropped as expected and said "FUCK!!" just before hitting. Unfortunately, he landed on an armory — there was no "... fell fowl to gravity." message. Instead, I went inside the armory (still as a spectator) and saw him crouching there, alive and well. I wish I hadn't forgotten to take a screenshot...

[kevlarman]

what is this thread doing still alive?