Sarah shrugged. “If you wanted to bitch out, you could give them a letter when you leave. Tell them all the same things. Just… expect them to write back. Keep writing them, but don’t even respond to their arguments. You’re a grown, uh… pony. You tell them you’ve made your decision and that’s that. Don’t give reasons or argue—giving someone the reason you don’t want to do what they’re demanding is just inviting them to argue.”