I've eaten 16 grams before and drove. all the colors I was seeing were blurry and fizzing out and un-fizzing at the same time. It was nuts, I was driving perfectly fine though...
Don't look like a stoner. I wear sperries, dress pants, and polo shirts. I look like someone who just left a business meeting. No cop thinks I look like a stoner...
Here in NZ to determine that you're driving under the influence of weed they do a sobriety test, then if they judge that you look like a stoner then can ask a blood test. As we all know THC stays in your system for weeks at the time so you're pretty much fucked no matter what lol