I can't help but think that Methos would get awfully bored going back to high school or college so regularly. And like, the modern slang changes so very fast - I'm pretty sure the Young People in high school these days are using language differently than me, and I'm only a decade removed from high school - that I still don't really feel like it would be an effective method on constantly keeping up with modern slang.

He does look gangly and adorable, but...apparently I'm all about disagreeing with you in this comment, sorry! -- I really think he looks significantly older than teenaged. And since I'm pretty sure the idea is that immortals' bodies don't age further past their first death, I am of the opinion that Methos was at the very least mid-20's and probably older than that.

Anyway now I can come round to agreeing with you on something, because I absolutely agree that Methos would be Exceedingly Gay at medieval college and it's a delightful thought. (and yes I'm pretty sure you would have seen that post from me, because I am familiar with the post you are talking about!)