Ok, I got one. I cooked a big brisket for 14 hours on a Brinkmann one time and I couldn't figure out what to do with the huge pan full of drippings the next day when I pulled if off around 10 A.M. I was tired from staying up too late drinking beers and babysitting the smoker. The air control on that model was just not very good. I said to myself, what the hell, and I dumped the water pan down the kitchen sink and ran hot water from the tap for about 5 minutes. Day or two goes by, all is well.
Then I'm washing some clothes and the wash water backs up out of the washer drain. I call the plumber, he comes over and says who dumped brisket drippings down the drain? I said man, you're a good plumber. He laughed and said it's not just because I'm a plumber, I also cook brisket. And he had another 150 reasons to laugh that day but at least my drains worked and I found a reliable plumber...