I've never colored my hair

But it looks like I'm gonna have to start! My 16 yr old son, is on his first behind the wheel driving lesson as I'm writing this post. I thought I was OK with this and even though he wouldn't let me take a picture of him w/his instructor to forever remember this day, I was still OK. Then it happened...about an hour into his 2 hour lesson, my cell phone rang showing a number that I didn't recognize. I quickly checked the business card the instructor left and saw that it was his number. I took a deep breath and calmly answered the phone. It was RJ, "Hi Mom, I'm just checking to see if I'm available to take my next lesson on Aug. 1st?" I replied (hoping that he couldn't tell my heart was beating in my throat), "Yeah, that's fine, what time?" He told me the time and I hung up. OMG!!!! Could that not have waited 'til they returned? I was certain that the call was from the instructor letting me know that there had been some kind of horrible accident, or that my son wasn't trainable and that I'd have to come pick him up. Now I have to wait for another hour before he returns. All the while praying for calmness and that my good friend/hairdresser will be able to do something with the countless gray hairs I've just acquired.