Is that what you think? [ Have a scoff and a flippant wave of his hand. ]

You humans are so simple minded it's amazing that you managed to get as far as you have. [ Wow. Rude much Starscream?!]

If you must know, it was because of civil war that we had to leave our planet. We had to off load our energon to various planets so when we left we could survive. And Earth just happened to be one of the miserable places that a large portion of energon fell to.