2½ minutes with a homemade shiv

In this video we check out an unusual knife I picked up years ago.
Someone made this themselves. It has a cast aluminum handle riveted to a steel blade.
I suspect this tool was made by a kid in a high school metal shop class, back in the day, when the teacher wasn't around.

00:00 Overview
00:33 The Blade
01:26 The Handle
01:49 Who Made This?