"I used to host extravagant yearly parties at my house as a thank you to everyone who worked for me. Significant others were fine, but I stressed that young kids were not welcome, because it was an adult party and the house/garden just weren’t child-friendly.

One of the guests who's a mother decided to bring her 4 children anyway, all under the age of 12, and leave them completely unattended. I walked into my master bedroom halfway through to find they had filled a dirt hole in the garden with water from a hose, made goopy mud pies, stomped around in them, come back inside and crawled into my bed under the covers, and ground their shoes intentionally into my pillow and all the bedding.

They also took all the clothes out of my closet, put them on, threw them on the floor and stepped on those, and ruined two rugs on the way.

The mom's response: "Haha! Well, that's just how kids are, you know. You'll understand once you decide to finally grow up and have some.""