A few minutes later, the boys and I were on the sofa when we saw a pair of them jumping across the floor. So I took a video. Those little buggers could jump about 20cm!
I checked our squash very, very carefully, and found no damage to the meat of it. So I scraped off an extra few millimeters and we cooked and ate it. The same with the seeds- none had any damage. They just were eating the connective tissues around the seeds apparently. Maybe they would eat into the meat and seeds if they were older. But anyway, it was pretty good. No wonder the flies liked it.
The next squash I will open up outside to spare the wife some distress.
So the way I made the roast seeds was to:
1. wash the seeds in a colander until they were clean
2. Boil them in fairly salty water for 10 minutes.
3. Put a dollop of sesame seed oil on a shallow baking dish, and spread the seeds one layer deep.
4. Sprinkle with salt and roast them at a medium high temp until they were just about to turn from chestnut to black.
Man, they were so good.