Intresting question. Actually this happend back in 2001, I was looking for an alternative email address and that day we took a lesson in Physics about planes and sonic booms lol. So I thought sonic boom was pretty cool, but didnt like the boom part lol. So I choose sonic and made it into xonic, x is one of my fav. alphabets and sonic was quite common.  

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"Be Like a Flower, Which gives off it's fragrance

even to the hand that crushes it."