I got the slipper at school

One of our teachers at primary school kept an old slipper of her husbands in the drawer of her desk, so when a member of the class misbehaved they were called to the front to retrieve the slipper from the desk. The teacher would then bring her chair to the front of the class, and sit on it, and receive the slipper from the miscreant, who would then bend over her knee to receive the adjudged punishment from the slipper on their bottom. The punishment being over, the slipper was then returned to the desk by the pupil, who then had the pleasure of sitting for the rest of the lesson on the hard chair while the lesson continued!
Happened to me several times with that particular teacher and let me tell you it did me no harm whatever!