Terry Pratchett is a genius
The teachers were useful there. Bands of them wandered through the mountains, along with the tinkers, portable blacksmiths, miracle medicine men, cloth peddlars, fortune-tellers and all the other travellers who sold things people didn't need every day but occasionally found useful.
They went from village to village delivering short lessons on many subjects. They kept apart from the other travellers, and were quite mysterious in their ragged robes and strange square hats. They used long words, like 'corrugated iron'. They lived rough lives, surviving on what food they could earn from giving lessons to anyone who would listen. When no-one would listen, they lived on baked hedgehog. They went to sleep under the stars, which the maths teachers would count, the astronomy teachers would measure and the literature teachers would name. The geography teachers got lost in the woods and fell into bear traps.
People were usually quite pleased to see them. They taught children enough to shut them up, which was the main thing after all. But they always had to be driven out of the villages by nightfall in case they stole chickens.
"When no-one would listen, they lived on baked hedgehog." !!! Still laughing!
I WISH I wish I wish I wish he was Tony Blair's main adviser!