You're a runner if...

... there's nothing like intervals to start the week off fresh!!
... you talk to your training partner more than your parents
... you run when you feel like it, be it 6am or midnight
... you do anything to try to heal an injury except go to a doctor because you know he will just tell you to "stop running."
... you wear a black, plastic sports watch with your dress clothes
... you can remember a time from a race 4 years ago, but you can't remember your friend's birthdays
... your heart rate is below 50 and you are not dying
... you know how many grams of carbs there are in a banana.
... you can name a person from Namibia, Djibouti and Zimbabwe

... you are not embarrassed to show someone of the opposite sex where your hamstring "really" hurts.
... girls: you are embarrassed to wear a bikini because of your shorts/bra/tank-top/t-shirt tan lines