Morphine as a quiet lethal weapon

[breakmend 1]

People keep asking for melee weapons. Well how about give players the option to forcefully inject morphine to a perfectly healthy player?

A) It's "melee" (as in melee range)

B) It's quiet

C) It depletes the item, thus making it harder thank knifing people

D) It would be the "backstab" of this game (to betray your companion)

E) It's not for killing zombies, obviously

F) Maybe it would not kill the receiving player, but make them unconcious and lootable?

G) Maybe make the context menu such that new players don't accidentally do it and think they were helping