When i was 18 I was trying to get my HS diploma at the local Adult school (San Bernardino, CA), I couldnt find a job since I was a white boy in the ghetto, and everyone out there hates white people, so I started selling pot to fund bus fare, food, beer, the essential school needs.
One day I was in my friends car in the parking lot smoking a bowl like we always did, and pigs rolled on us. I had 5 nickel bags. Thats 10 grams of mexican pot, and since it was in 5 seperate bags I was arrested with "possession of a controlled substance for sales" (exactly what was written on the paperwork). My story was that I purchased a 1/2 oz. and it came in 7 nickel bags, which is'nt far fetched since I have purchased 1/2 oz's and ounces that came in a bag full of bags many times before.
So I sat in jail for 3 days with all the federal inmates that were being transfered around on 23 hour lockdown, My neighboring cell was occupied by a really cool bank robber, I got to read through his paperwork and see all the cool shit the FBI wrote about his crimes.
3 days after being arrested I went to court, the charges went down to misdemeanor posession and I got time served. Which is really common for first time offenders, I've seen it hapen to a few other people, they try to scare you strait with a couple days in jail.