Inspired by harry's Superhero party and Charlie's Spiderman singlet, husbang and I were this morning discussing why no one had ever used a can of flyspray to get rid of Spiderman. We then went on to come up with an even more cunning plan, involving Kirsten Dunst.
You find the original radioactive spider, or irradiate another and have it bite Kirsten. Then, when she turns into a ravening Spiderwoman have her track down Spiderman have sex with him and then rip his head off and eat him. A cunning plan with no drawbacks.