One of the few that I have been able to retain all of these years later, is having attended a rather... interesting Potion's lesson with the one and only Severus Snape. Beyond that, I'm afraid I haven't had many others - else ones in which I was able to remember. =/
Well, actually, there WAS that one time I was being chased by wolves - or as the case may be, werewolves - and that I had somehow managed to fall off of a cliff and miraculously, out of nowhere, was saved by a broom and on which I flew off and away into the moonlit night. Yeah, that one was one of the more bizarre of my life...