The Saga of the mall ninja all began about 10 years ago on the HK91 forum (although later it was claimed to have started on a glock forum -- this is not true, as the original thread in it's entirety contains a commenter, one Trigger643 who happened to be around at that time).
http://lonelymachines.org/mall-ninjas/
Are you a Mall Ninja if you still have the plastic Junior Detective Badge they gave you when you were 9 years old?