Gerry, Strangle Boy should be capitalized. Proper noun, due to title you so generously bestowed.
Kid's going to grow up to be Shimewaza Man.
James clarified how the kid caught him. I was thinking tunnel vision myself, literally since he Was being choked... and the tunnel vision happens quite often, both in the actual vision and in the progress of thought. But, he clarified about the position and the not speaking thing, and erupting into a full-bklown, explosive escape could have hurt budding Strangle Boy's bod, as well as feelings, so the restraint was admirable.
But, you're right, blood asphyxiation uusually doesn't cause seizures, it causes the momentary shutdown of the voluntary nervous system, thus da muskles. When we reboot that way, often times there's test circuits firing to get things all back online and all green lights acorss the board. Sometimes this manifests in visible, sometimes more than visible but obvious twitching. Happens quite a bit at judo tournaments when the slippery ground guys start working some smooth chokes on people who don't know they are there until it's too late.
And. air chokes suck. Ow.