So, Johnny was diligently working in the lab trying to generate a little nucleation. But things weren't going so well and he's just not having any luck. Then all of a sudden his lab partner fumbles in, accidently knocking Johnny's beaker of silver nitrate into some potassium chloride which spills all over Johnny. 'Heavens to Betsy!' Johnny gleefully proclaims as a beautiful white solid of silver chloride materializes. And that's why, the legend goes, if you're not part of the solution, you're part of the precipitate. Kelly green, 100% cotton heavyweight t-shirt with black text and pics on it. Beneath some nifty drawings of labatory equipment reads...'If you're not part of the solution, you're part of the precipitate'..