the joke is kevin has aids dave goes in a store and he sees kevin in the store. kevin is his arch nemesis and a bad soccer player for the team the great whales and then kevin says with a large grin hello dave how is your soccer team doing this year. well dave is outraged and says my team is doing great we have a secret weapon this year. kevin has the air blown straight out of him when he hears this and goes in his mind ""oh no, a secret weaponthere's nothing i can do to stop it"" later at the soccer game kevin sees dave and says so dave where is your secret weapon that ive been hearing so much about from you at the grocery store. well it's rigth there says dave as he points at a pile of rocks. but that's just a pile of rocks replied kevin. that's what you think says dave as he falls into a shallow puddle and drowns. oh no, he's dead says kevin as he turns dave onto his back. and he never even had a chance to utilize his secret weapons which is in those rocks over there. so kevin goes to the rocks and begins digging into them. at the bottom of the pile is a golden envelope. kevin opens the envelope and inside is a two movie tickets to ernest goes to camp his secret weapon was friendship says kevin as he weeps bitterly