Syag Lchochma -“They are like the big brother who beats up the little brother. When confronted by his dad he says, ‘I did it for you dad! He was doing something to shame you.’ Dad responds, ‘You fool! He is my child. Do you think hurting my child to save my pride brings me relief? Next time leave me to take care of my childrens discipline since only I know what each deserves.'”
Yes, this Moshol would apply in a case where you shouldn’t give Musser. But there are cases where one must give Musser.