Original Commentary

Do microwave ovens have conventional screws? No idea. No research, folks. That's why Brisbane's line got added in that third panel. Is it safe to open an unplugged microwave? That's a good question. Is it safe to use a microwave that's been "fixed"? No - Terrence

Modern Commentary
But yeah, I think that Brisbane's motivation has gone from "wants popcorn" to "doesn't want to spend eighty bucks on a new microwave" to "doesn't want to admit that he has no idea how to fix this" - Terrence