My 4-Year-Old Son Got Extremely Upset Every Time My MIL Babysat Him – When I Found Out Why, I Got Revenge

Working as a nurse, Zoe often relied on her mother-in-law, Denise, to babysit Leo, her son. But when the little boy becomes visibly shaken by his grandmother’s presence, Zoe has to question the old woman’s actions, only to discover that Denise has a hidden agenda.

I had always thought that my mother-in-law, Denise, was a little overbearing, but I chalked it up to her just being protective of my son, her only grandson, Leo.

She was one of those women who carried herself with a certain authority that made you straighten your back and rethink your words. This had become more pronounced when Jeremy, her husband, passed away a few years ago, allowing Denise to reclaim her role as head librarian of the local library.

“Why shouldn’t I?” she asked Andrew, my husband, one day. “I have time now, so there’s no need to just have my part-time role there. And I can have my book club meetings at the library, too.”

“Okay, Mom,” Andrew said. “You do whatever you want.”

She wasn’t mean, exactly, but Denise had a way of making you feel small without even trying. But still, she lived two roads away and was always willing to babysit Leo whenever I had a shift at the hospital, and considering Andrew’s unpredictable hours at the law firm, Denise usually had to step in often.

“It’s what grandmothers are for, right, Zoe?” she would say whenever I asked her to come over.

And despite how her moods could shift without a moment’s notice, she was reliable and didn’t complain about it once.

But lately, Leo had been acting strange whenever Denise came over. At first, it was small things. He would cling to my leg a little longer than usual when I tried to leave or hide behind the couch when he heard her car pull up in the driveway.

I thought that my son was just going through a phase, or maybe even a bit of separation anxiety. I had seen it all the time with the kids in my ward, especially when they woke up and their parents weren’t in sight.

But then, last week, right before I was about to leave for a night shift,...