So far that's happened to me once, when I'd been in major traffic and the bike (and weather) was hotter than usual. I chalked it up to the oil, engine and transmission being hotter than normal since it hasn't happened again.
Oh yeah, when it was going on I couldn't find neutral for love nor money...
Part 2: I've been killing the engine when I park with the sidestand switch since I got the bike and have no negative effects. So far. It's just like a foot operated kill switch...