no because your upstairs the only way to do that is to be downstairs have no gravity be upside down and then sit down and half of the planks or stone are the ceiling the other half is the floor so you can only sit on one and not another.14
no. the downstairs roof, maybe.
If it's a poorly constructed house
no your actually above the ceiling not on it - ooohhh scary
Nope........... I'm sitting on my bum. mx:P