poop to his pants

Last weekend, my family and I went to my mother in law’s house so that she can see my children or she can spend time with them. While we were their my son is watching his favorite show at one of my sister in law’s bed room. I’ve notice the he hurriedly run to the rest room and he was calling me. I found out that he had an accident. Poop to his pants. I was laughing because that’s the first time he has accident like that. I was worried because I never bring any pants for him. Luckily, my sis in-law had a pants and panty left from her grand daughter so she let my son wear it. He come home wearing under wear from his girl cousin. I know it is not funny, but it is now.