I'm currently in the endless email loop because someone named Raymond used one of my Gmail names to register with State Farm. One of their agents even emails me directly when he gets really behind on his payments but won't do anything when I tell them it's the wrong email.

In the past when this happens I usually reset the password and change the email to some anon throwaway but I can't do that without Raymonds DOB (don't quote me on that, been a while since I tried).