Just had this situation:
Playing on Honour mode and went into Owlbear cave. Got surprise jumped by a pair of owlbear parents. I barely managed to kill the first but last two chars were both on 1 hp and second owl on 70 hp. It should've been game over but:
- Owl multihits char 1 for 40 damage knocking it out,
- char 2 helps char 1 up,
- char 1 deals miniscule damage with offhand bonus action
Repeated 20 times until owl is dead.
Feels super cheesy, but is just basic mechanic. Granted this exact siutation won't come up alot, but helps driving home the point of injuries for knockouts!