How it feels to chew 5 gum (and tips against an oppressive shiv)
I am low elo clearly and I see people complain about shiv all the time in my games. They lose all common sense when they see a low health bar and chase me into a hallway, I spam 2 they die and then complain that the character is unfair. Yes he is unfair but only in the hands of a small fraction of players.
If shiv is low and runs away into a tight space, use slow hex or silence when he tries to reengage. Silence is the bane of shiv's existence and makes him into a pin cushion and while a goat shiv can right click away, he can't delete your team. Otherwise send one strong player to finish him off. If shiv is 1 hp and your teammate is chasing him underground, DO NOT FOLLOW. Your teammate does not need your help and you might get you both killed.