Diet

Get a load of those chops!

Dragons feed primarily on cattle, or steers (Horse, Cow, Goat, Deer, Llama, etc.). Vary rarely will they eat humans on the basis of being hungry (do you know how awful you people taste?). You'd need to do something really nasty for a dragon to want to put something as icky as you in it's mouth.
But meat isn't everything. Dragons are herbavours, with molars at the back of their jaws. Their insizors are razor sharp, but are incapable of chewing. Dragon's don't make a habit of eating plants, but it helps when one is too lazy to bother hunting one morning.