Why do Mormons have trampolines?

At my school we found out that two Mormon kids had trampolines and we asked 6 more and they ALL had trampolines. Why do Mormon people have trampolines? It can't be a coincidence because that is 100% of the people I asked.
Update: I didn't say that all trampoline owners were mormon. I said all the mormons I asked had trampolines.
And no they are all from different families.
Update 2: If you dont believe me here are some links haha. im not alone in wondering this i... show more If you dont believe me here are some links haha. im not alone in wondering this i guess.

http://ganchoverseas.blogspot.com/2006/12/and-god-said-bounce.html

http://www.askgramps.org/why-do-so-many-mormons-have-trampolines/

http://forums.intpcentral.com/showthread.php?t=23378

http://pishtosh.blogspot.com/2005/05/ive-totally-been-waiting-for-this-to.html
Update 3: I found 2 kids today who did not have a trampoline. But one more did. Then I ran out of Mormons that I know of at my school.
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