Did you know that "the wrong end of the stick" phrase comes from the Romans? The Roman centurions used a communal toilet, where they would all be crouched in a line over a trough. Water would be flowing down the trough, flushing away the "mess". A centurion would then use of stick, with a brush at one end, to clean his arse. As these brushes were also used communally, the brush-stick would be passed to another centurion for an arse clean and then passed to another centurion...
... you just had to be careful when being passed the brush and not grasp the wrong end of the stick.