Why do they always have to be errors? What happened to the spirit of the no-prize?

Maybe Pete took off his pants to shock Doc Ock for a moment, then immediately put 'em back on so he wouldn't be "spraying webbing" everywhere!

Or, depending on the context of the panel, perhaps Doc Ock hit him so hard, it knocked his pants clean off of him, and he had to grab a new pair before continuing the battle!