QUOTE
Identified by some psychologists and psychiatrists as part of an “extreme community†on the Internet that appears to encourage delusional thinking, a growing number of such Web sites are filled with stories from people who say they are victims of mind control and stalking by gangs of government agents.
http://www.nytimes.com/2008/11/13/fashion/...ml?pagewanted=1
I think we've met several people who fit this description. Not the mind control aspect, but definitely the group stalking bit.