I just posted this, so there's some who haven't replied yet- but I've got two other people besides. Ehhhh... one had a Vulpix evolved, and it's looking like a mess right now. Another implied the same thing happened, but they haven't gotten back to me.

So it sounds like Team Rocket. What, did they go 'let's go something nice!' and decide forcibly evolving Pokémon anonymously was the way to go?