Kamikazes

Humans

These players will put themselves at the front of the spawn, behind the kill barrier that keeps the infected from entering. They will be just close enough to allow the infected to grab them. If the infected grabs them, they and the infected will both die. Effectively sacrificing themselves to bait an infected into killing itself.

 Infected 

These players will "hug" humans that are behind the kill barrier in the spawn  to kill there victim and their self. Another thing that the infected do is willingly drag them and their prey into the void of the Back Alleyway  or the water in the Storage Room. It is unknown why these players do this.