Most any time I cook spaghetti squash, I cut it in half (or Vince does that), I scoop out the seeds, wrap it in plastic wrap and microwave each half for about 5 minutes. It gets very hot and I let it sit in the microwave to cool off a bit.
But once upon a time, I read that if you poked a few vent holes in the whole thing, you could just microwave the whole squash. I tried it.
That happened 10-1/2 years ago, in Kentucky, and there’s never a time that I put a spaghetti squash in the microwave that I don’t think about that incident.
By the way, I had poked about 10 holes in the squash before I put it in the microwave. I’ve microwaved a few whole ones since then . . not many . . but I’ve never had an explosion like that and hope I never do again.