Unreal quicksand. Mindsand...

[Mixman]

Fantasy is not a reality, there are a lot of thoughts in your head and you can think of anything, but in reality it is not always possible to be 100%, and sometimes completely impossible.
For example, one of my fantasies is quicksand on the wall or ceiling, when the victim is not drowning in the usual direction...
Another fantasy that quicksand is something alive, female, since I'm a man (I think that women can have similar fantasies, thinking that the quicksand is a man).

And what unusual fantasies you have?