Short transcript excerpt from a YouTube video where Ming @ Agents of Speech explains why a child repeatedly gets off a chair: the child interprets the parent’s attempts to grab or chase as a game (like tag), finds it fun, and is rewarded by the interaction, reinforcing the behavior.
Most of the time, when the child gets off the chair, it's funny to them because the parents trying to grab them and chase them and they think they're playing tag or something, right? Trying to grab him back on the seat. The kid was running away. He thought it was a game. So that's why the more he ran, the more he was actually rewarded. So given the chance, he ran, he felt fun that the mom was trying to tag him or something. That was fun. And he's getting rewarded by the mom saying, good job. No wonder he's getting out of the chair, because these things are happening.
