SOME DAY I’LL SHOW THEM! [sob] SOME DAY THEY’LL BE SORRY—SORRY THAT THEY LAUGHED AT ME.” / Fortunately for our hero, “some day” turned up a few minutes later when Peter was bitten by a spider that had inadvertently absorbed an unusually high dose of radiation during a science demonstration. in the real world, Peter would have succumbed to radiation poisoning and died in confused agony with no hair and no teeth several weeks later, but this was the Marvel universe establishing its own rules of engagement. In the Marvel U, radiation was a kind of pixie dust: sprinkle it on a scientist, and voilà! A superhero was born.
Grant Morrison in Super Gods - I love this book absurdly.