Rules (a lesson in life)

Today, I had a terrible, horrible, no good, very bad day. Let's recap.
On my way to work, I almost got in a crash because people don't understand the rules of the road OR what the function of a blinker is. I got to work, there was fighting at the foosball table. At breakfast, kids were playing with their food. Recess was a nightmare as kids believed they were about the rules and decided to climb up the slide, sit on top of the equipment, not keep their hands to themselves, and a host of other rule breaking actions. When we got inside, we sat them down and reiterated the rules and, right when we were done, they started talking and yelling.  This behavior went on for about 4 more hours until I was able to leave for my other job. I was tense and frustrated, so my work was not up to my best quality. After my hours where up, I went to the dentist where I was informed I have 4 cavities to fill. Awesome. I drink black coffee, use sugar-free syrup for my lattes, don't drink lots of soda or eat much junk food. And I floss every night. Literally, every single night. So. Now I am laying in bed, wishing today never happened.
The biggest problem with today was the lack of rules being followed. Someone decided they didn't need to follow the rules of the road and just about caused an accident (good thing I wasn't changing radio stations or my car would have been smashed). The kids believed the rules did not apply to them so there was constant talking, tattling, hitting, yelling, and misbehaving. And I eat my fair share of dried fruit (cheaper than real fruit, thank you college), so now I have cavities. Rules, in all areas of life, are put in place to protect or improve us. The problem is that we don't like rules. They seem so restricting and mold-fitting. But are rules and ridged as we make them out to be? Looking back on my parent's rules, I am actually quite thankful for them. As crazy as this sounds, my parents had my best interest in mind when they gave me a curfew, took away my driving privileges, or told me I couldn't spend the night with a large group of people. One day, I hope these kids will see that the rules put in place, whether at the club, in school, or at home, or in life, are meant to keep them safe.
And I need to learn to shake things off. I was listening to "Keep your Head Up" by Andy Grammer. The biggest downfall for the day was that I let the little things get to me. I got upset at so much more, something I should not have done. The song goes like this: The glow that the sun gets right around sunset helps me realize this is just a journey, drop your worries, you are gonna turn out fine. Next time, I'll remember that. And be thankful for rules.