turn on vanish 
teliport (/home something or other)
& whilst sleeping  F1  "disconnect"

NullReferenceException: Object reference not set to an instance of an object
at Oxide.Plugins.Vanish+VanishPositionUpdate.OnDestroy () [0x0000b] in <81696e3c72694855bd8b84749524b426>:0

Thanks I'll test it out when I get the chance 

This error also occurs when a user simply disconnects while in vanish.

Reference:

yep... also found an exploit using it...
luckly it is not a user plugin, admins can go under map anyway so no real biggy....
But it seems if in vanish+tp to a  /home  on a rock, then disconnect without waking...
puts you INSIDE the rock when you reconnect... as long as the fall is not to far you survive.
But im just wondering if this is a "home" exploit rather than vanish.
I suspect it is becasue of a bug in "/home" which is why the author reses you in the air & you drop down.

but when in vanish you're in free space not on a navimesh, so that puts you into the  map.

I get the error every disconnection.. fortunately aside from the console message it doesn't appear to have any negative effects, but I always disconnect over water so don't know if my body becomes visible after disconnection