Internet - "Am I an a*****e for kicking my brother-in-law out of my wedding after he did this to my kids?" That's what one Reddit user is now asking the popular community. But what did the brother-in-law do?

An anonymous user wrote into the popular r/AmItheAsshole Subreddit this week, seeking perspective on how he should have handled a crazy situation with his sister's fiancé.

The author explains that on the day of his wedding to his wife, he was very excited for his new step-children (aged six and four) to be a part of the ceremony.

He then gives some background: his sister's fiancé Tim has always had an aversion to children and always tried to exclude the little ones from family events. Tim actually asked if the children would be at the wedding, and pushed for an adults-only event.

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The poster insisted that the wedding would go on as planned, children included, as it would be a small ceremony at their homes children with no other guests.

Though not delighted that Tim decided to come to the wedding he had complained about, the post author was pleasantly surprised when he offered to take the kids to the bathroom and get them ready for dinner.

"Minutes later he came back and I asked him where the kids were and he said he took them to the bedroom because they wanted to play with their toys," the baffled groom wrote.

The Reddit user admits he thought the sudden change in attitude was odd, but he had to immediately care for an injured relative and gave the situation little thought.

Later, his younger sister came into the room and expressed concern that the children were locked in their bedroom. Tim eventually admitted he had locked them in, offering various excuses and eventually settling on the story that he to wanting to keep them safe.

Furious, the groom threw his sister and Tim out of the home. "My parents said it was unnecessary because Tim was just trying to help," he said. His family asked him to apologize to Tim and his sister, but he refused, as Tim's actions were absolutely inappropriate.

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In the meantime, though Tim sent an apology email to the bride, the author thinks it best to cut ties with the pair for the foreseeable future.

On Reddit, hundreds of commenters are fairly unanimous in their assessment the in this situation, the author is not the a*****e.