My 5 years old baby cousin has been staying with me throughout the night since her mom works night shift. It's been little over a month now and he's still crying everynight, his mother and I even talked about it and she said that she already explained to him why she leaves, even i myself already explained to him this things. I don't want to be those parents(well as for me i guess guardian) that results to physical violence to control them, i know it's their way of communicating since they can't regulate their emotions well. But we already talked a lot about it and it's the same thing everyday i explain and every now crying infant for 30 minutes or more. And advice how to tackle this problem?