The bathroom is literally the only place I can be alone! So, unashamedly, I spend a lot of time in there! Usually sat on the closed lid(on MN!)
Inevitably one of them will shout me for something, so I just say something like 'I'm just in the loo, be out shortly... I hope!' That tends to buy me 10 mins or so.
Am I alone in this?
I've also been known to eat chocolate in the bathroom, too!