What happens if you get caught with a small bit of pot where you are?
Really, it all depends. There are far too many variables to even predict it. The few cops and sheriffs I know will likely turn a blind eye, while those I don't will more than likely slap a pair of cuffs on, and from there it is up to a judge to decide from everything to how I reacted, previous records, current state in life, to many other variables, while cops in a city just about 30 miles away will just dump the stash onto the road.
But, when I think a "small" bit, I'm thinking barely enough for one person, which for me might be a weekend visit to the jail, maybe a month or two, but not too much.
The story I will forever stick to though, if the black chick (I can't remember her name right now cause I'm too drunk) risk jail time over a damned bus seat, I can risk jail time over something just as natural as and harmless as grass.