Being the sibling that ends up as the designated babysitter at every family gathering is exhausting. It’s great for the parents, they get to sit back, relax, and enjoy a glass of wine. But the unpaid labor for the kid who got the short end of the stick is brutal. Growing up, I was always in charge of my two little cousins at family parties. And while I love them to death now, the thought of playing hide and seek for hours on end still gives me PTSD.

But this 17-year-old sister’s story is a little different. After years of quietly watching her older sister’s three kids without complaint, one particularly petty moment at the family dinner table pushed her too far. Instead of offering a simple «thank you,» her sister decided to crack jokes about her being single and having nothing better to do than babysit. Now, this teen is setting some much-needed boundaries with her older sis… but not everyone in the family is happy about it.