We thought it was just weird that he'd had a few 'accidents' in the bathroom but I just caught him sitting in the bath, arse over the plughole, piddling down the plughole 
We have been keeping the loo seats down thinking he might drink out the loos but perhaps we should leave them up if he has been trained to use the facilities? 
I am now torn between absolute revulsion and gratitude. 
He's a bengal, he seems remarkably smart. We'll have to see what other little habits develop 