Joe, shop assistant at the cycling department, approaches you and says: "hey man, I noticed you looking for that stuff... If you follow me I can give you something will make you a great cyclist one day..."
You follow him interested while asking "are you going to sell me some strange drug?" You laugh. "Nope, anyway I can assure you that you'll got the time and the way to be the best".
You follow him wondering how.
He grabs a tiny purple helmet and says you "try it on". You protest saying that it won't fit you by him insists so you, wondering what you have to lose, try the purple helmet on your head.
"You see? It doesn't fit me" you say but he smiles and answer "cause you have to pay for it... It's 40$"
You open your wallet and look in: you only have 50, so if you buy this ridiculous purple helmet you won't be able to buy what you were looking for. "Are you really sure it'll work?" "If you pay for it and work hard, you'll have a long cyclist career, trust me".
You go paying for the helmet and then wear it.
Immediately, you lose weight and height, your brown hair turns curly blonde and grows till your ass. Then your penis and testicles are replaced with ovaries uterus and vagina.
You are nothing but a nine years girl, and an ugly one judging from your face. You scream, but Joe says you to stop and explains you that the only way to be a great cyclist is starting from childhood. You asks "and why have I to be a girl?" He laughs and says "since I have to grow you up as my child, I only want to assure that you'll obey me in every thing I will ask: you are not only an ugly little girl, you are also easily predisposed to get fat if you won't practice hard training. If you won't obey me I won't allow you to practice and you will be not only a girl, not only ugly but a fat one, instead of a great cyclist. Are you ready for it, young lady?"
"Can I change back?" "O yes... If you can afford your old clothes... I can sell you for 11$, only for this evening".
You looking again at your wallet, that has changed into a pink one, perfectly knowing that you only owe 10$".