My son used to eat too fast without chewing properly.
He'd just swallow lumps of food sometimes, even though we'd actively work on slowing down.

He was a solid mass of a kid from his down syndrome, (he has the physique of a silverback)

He went wide eyed at dinner one night and wasn't breathing, I had to get him out of the chair and spun around for a heimlich maneuver. Because he was choking he was going all limp, and I'd just finished cancer treatment so I was fatigued and weak AF, so it took everything I had to lift him and do the heimlich. He coughed out the food on the first or second try. Thankfully, because I was done after that exertion.