What is your toddler’s weird obsession?

My son is 2.5 and is an overall very smart kid, and I’m very proud of him. Let’s get the disclaimer out of the way, this is mostly meant jokingly and I know we’re very lucky if this is our biggest complaint. Still… my boy is OBSESSED with the game “10 in the bed”. You know, the song, “there were ten in the bed and the little one said roll over, roll over…” He’s turned it into a game. He lines up his stuffed animals and figurines on couches, his bed, chairs, anything, as well as himself, and rolls them or himself off of the furniture to the point of bruises. So funny to me but it’s been like two months of trying to let him get past this on his own, I’m starting to think it’s a legit problem lol. He’ll play it for hours everyday, and it’s hard to get him to play other things, read, eat, or go to bed instead of doing this without a fight or setting a timer to set him a transition.

What’s your kid’s weird obsession?