Everything you wanted to know about slime but were too squeamish to ask can be found at the event Aug. 31 at the Greater Fort Lauderdale/Broward County Convention Center. There will be how-to classes, demonstrations, question-and-answer sessions, vendors selling slime and slime-related products, and meet-and-greets with slime celebs. And, of course, there will be big vats of slime to play in.