The crowd at 7th and Montana was flush with excitement this morning as inside sources blew the whistle on the culprit responsible for last month's Sludgegate incident that left some locals up to their eyeballs in toxic waste. Apparently, a fitness guru and spokesmodel we'll call "Mr. Sludge" flushed his weight in babywipes down the toilet, clogging neighborhood pipes and sending hundreds of gallons of raw sewerage into the elegant apartment complex at 527 San Vicente. I caught up with Mr. Sludge today at Whole Foods and kept a close eye on his shopping cart. I'm pleased to report that he walked right by the babywipes. Of course, the fact that I was standing in front of them with my spycam at the ready might have had something to do with that ...!