I had a short streak of substitute teaching at the local business school. That week drained energy from me like a troupé of vampires. A killer week. The students were still in their teens, but hell, they were acting like we used to - in pre school! All the swearing, teasing, it was hellish. Half the time I spent telling them off. Note, these were people who are supposed to enter real adult life next year, with work and responsibilities!
I'll never do that again. I'd rather live of J's money. Sorry, J.