My friend who rides bikes crushed a testicle. My other friend, who rides trikes, didn't. Therefore, and conclusive beyond even the remotest shadow of a whisker of doubt, riding bkes causes cancer and riding trikes prevents it.
One of us is sarcastic, the other simply ignorant.
Which one do you think you are?
Clearly I must go purchase a trike! I also like how it went from being a crushed testicle to cancer
Also, if everyone was a little more sarcastic the world would be a better place.