This is not a joke but I laughed so hard when I heard it.
I have a nephew who is 18 years old. My brother and S-I-L are divorced and have been for more than 10 years. He grew up living with my brother and only went to see his mother for a day or two at a time.
My nephew graduated HS and went to Phoenix to live with his older brother and his family. My nephew has been pretty hard on my brother over the past couple of years. He thinks he has been unjustly held back in life. yada yada.
Even though he thinks he is one of the smartest people to ever walk the earth since getting to AZ he has been learning a few things of the more important things in life.
The other day he learned that you don't eat ALL the premium chocolate that was painstakingly hidden. It just MIGHT be your sister in law's chocolate that she indulges herself with when she is having a very hard day or worse yet, when it is her "special time of the month". Man did he get a butt chewing.