"It only takes one decathlon to show you that we are all only made of flesh, done and lactic acid"
"Caution! Decathlon: Only enter if completely insane"
"Decathlon, the best and worst feeling in the world"
"Why compete once and go home when you can do it ten times!?"
"To committ to pain is to committ to the Decathlon"
...thats all I can think of for now.