So, um, yeah. That just happened. The game went to a stupid long load screen trying to get into Barrell's Bottom, so restarted client (Khyber).

Everything took forever to load back, and after restarting the client a couple times, it logged me into the wrong account. As in... the account of someone I was grouped with.

I immediately logged back out, then back in and, thankfully, into my own account.