When something happens in a small town, everyone is going to hear about it. So when this couple chose to let their toddler roam unsupervised around an open house , they'd be crazy to think the whole town wouldn't know what happened by the next day. The OP, u/open852, wrote to the r/AmItheA**hole subreddit with their rather intriguing etiquette question. In the post, they describe how they and their husband brought their 4 year old kid to an open house . While the parents were strolling the prop…