At one place I worked, a security guard had stuffed a little girl’s body (anyone remember Kali Ann Poulton?) in the air conditioning cooling tank for several years. Needless to say my faith in security guards is low.
I had to work around a security guard who practiced his quick draw (with a loaded revolver) on the tire of the aircraft we were working on, he also talked alot to himself.
It scared most of us, and we were so glad to see him leave.