Black hole Glitch :S

[MorrisonsRetros]

I've seen a few rooms that have had this now, where they have black holes in certain parts of the floor, but you can still just walk over then as if they are not there? I've seen it in a couple of mazes before and when you click the floor you can walk over them, and like with other furni in the bottom right it says that a black hole is there?
Confused much!

[Ribbonaire]

It's not a glitch, I think. I think they are designed so when you double click them, they become walkable (is that a word) on, and "turn off"

[MorrisonsRetros]

Oh right okay, I've never really had black holes, so wouldn't know :S