He was thinking something silly along the lines of "Don't anger dragons, for you are tasty and go well with ketchup." What he wants is a bit beyond my ability to translate ATM, but I came up with "Faas dovahhe fah sosiil med Sufol-Portav." I hope this gets the basic idea of "Fear Dragons, for your blood is like ketchup."
Hope this is alright here just remembered/noticed the question board.