Hey as the pp suggested your best off separate the kids when your not directly beside him for now. When I've had a bitter I either stick them in the playyard or the superyard when I leave the room for anything (meal prep or diaper change). THIS way I'm not stressing while out of the room. I'll give my bitter a few toys in their separate area and they do sometimes cry. But i find if they get imiddatly seperste after the incentive each time they stop fast and are soon good to go again. good luck I know it can be a challah to stop.