I'm 17 and I've been pulled over 5 times under my first year. I've only had one small "unsafe lane change" ticket which was a very small misdemeanor.
Over the summer I always shave my head and cops are on my ass left and right. One time I was driving my dads old buick which has a small crack in the windshield. Cop pulls me over for the crack, and from the crack they somehow find me suspicious and end up searching me, cuffing me, putting me in back of his cop car, while him and his partner are tearing through everything trying to find some weapons or drugs. The cop comes back says "I'm gonna let you go this time, but get that windshield fixed.".... OK Officer..
Mind you I've never been arrested, convicted of any crime, or have a record.