Eh... How about that when you get "killed" you are still seeing yourself, but crawling and being controlled by the headcrab bot. Ive heard that Fooly Cooly took off the mounting of the right hand because people could control each other while on the right hand. Note, I do not know THAT much about these headcrabs, but I have seen someone try to kill me with one of those.. Things, on their heads, in the HL2 games.