It started several months ago. Drew took notice of the air conditioner and heating vents in the ceiling of our house and in various buildings. This in and of itself is not strange. The fact that he, in one particularly memorable visit to the doctor for him, thinks that there's a dog trapped in the ventilation that he needs to help is fairly singular.
"Help brah." He said it over and over again, pointing to the vent in the little exam room we were in. I tried to reason this by saying there wasn't a dog up there. He persisted. I tried to explain that someone else was going to help the dog, that we couldn't do it from there. This mollified him, but he kept a decent amount of attention on that vent.
A week or so after that, he grew fascinated with the vents in our house, and Momma had to help the dog in our ventilation system by touching the vent with a vacuum cleaner attachment that Drew likes to use as a sword. Drew's favorite game for a couple of days was ordering me around the house, pointing to each vent, and saying, "Help brah!"
I didn't think much of this beyond labeling it quirky until Drew started consistently saying that a dog was going to stop the rain or the wind or the clouds. "Brah stop sound."
We don't have a dog. He sees dogs on a regular basis because my mother and my brother have dogs. But these dogs do not accomplish amazing feats such as controlling the weather. I really have no idea where he got the idea or how he formed the concept that a dog is wandering through ventilation systems, managing the weather. It's very unique, aside from all that joke about the dyslexic agnostic pondering the existence of a dog.