I took one hit only after being clean for 6-8 weeks. Then I had a surprise drug test (urine, Quest) 10 days later. I didn't get to drink more than 2 cups of coffee and 2 pints or so of water. Urine was clearish- but usually is because I drink water all the time. What likelyhood do you think it'll show dirty? It was truly ONE hit. I've got a few pounds on me- I'd say I'm "thick."