Looks Can Be Deceiving

Looking around, Coralie realized she was considerably younger than her new classmates if not the youngest of the group. She pulled her pale pink suitcase along behind her, joining the rest of the group.
"Need some help there Princess?" Asked one man in a mocking tone, turning around to face her.
"No. I'm right thanks." Coralie smiled politely at him, and he turned around again. A moment later, another man turned around for a moment before starting to laugh with his friend.
"Hey look Joe. It's another one. Beauty spa's that way love!"

"That's one hundred fifty six, one hundred fifty seven, one hundred and fifty eight in ten minutes!" Officer Davison announced, a pleased grin on his face as he crouched beside a now red faced, puffing Coralie. "Good work Officer McCauley." Their teacher slapped her hard on the back. Coralie looked up at her predominately male classmates, to see most of them gawking at her, open mouthed in astonishment. Only a month into training at the accademy and Coralie was well and truly on the rise as the year's star pupil.

"There are three traffic light colours. Red, yellow and green. They signify what?" Their theory lesson that day was based around road rules and driving. Another tutor, Officer Wells, was putting them through their paces and testing their knowledge.
"Green is go, red stop, and yellow go through really fast if you're going too fast to stop."
"Good, but not quite. Anyone else." Officer Wells looked around the room at her students. "Officer McCauley?"
"Red is stop and green go. Yellow is the cautionary light. If you are going too fast too stop, go through but do so with caution. If you're well away from the lights, prepare to stop."
"Spot on. Ok, a little harder. What is the legal blood alcohol level?"
Coralie spoke up immediately. She'd been studying drink driving just the other night and the facts were fresh in her mind. "Ideally, you should have no alcohol in your system in order to drive. However, the legal limit is currently set at 0.05 BAC. In order to comply with the limit, males may drink no more than two standard drinks in the first hour followed by one standard drink per hour following. For females, one standard drink per hour is allowable."
"Exceptional Officer. Well done."

At their graduation ceremony 5 months later, Coralie's name was called midway through her classmates and she proceeded to the stage to receive her graduation certificate. "Officer Coralie McCauleu. Graduating with honours for exceptional performance in physical and academic tasks. Well done." Like her classmates, Coralie shook hands with the officer presenting the certificates.

"How'd you do it Coralie?" Asked one of her classmates. "We all thought you'd gone the wrong way and you were headed for the spa."
"I noticed."
"So? You beat all of us on the gym and you showed us up in class. What's your secret?"
"Well, lets just say looks can be deceiving, and not all blondes are dumb. AS for gym, well. What doesn't kill me makes me hotter."