My pet theory is a little more sinister, but it doesn't explain the tame satyrs.
Brand needs to teach Brawl at least once a week to satisfy his Skill Geas, or it will invert itself (turning the current bonuses to the associated ability, which is also Brawl, into equivalent penalties). Right now, that would effectively cost me 4 automatic successes on every Brawl roll. Once I increase my Legend, that will double. So yeah, something I'm very keen to avoid.Are there specific things Brand needs to teach? I don't have the XP yet, but training is a good excuse to use it as soon as I do.
Depending on when we can spend XP, the Teaching Prodigy knack will either be the first or second thing I pick up, letting anyone that trains under me purchase dots in Brawl (or whatever else I'm teaching) at half the normal XP cost. Only fair to reward people for helping me with something so crucial to my character.