I am fairly obsessed with Damn Interesting.
It's chock-full of articles about things that may not be known to you.
From the article, Hadji Ali and the Regurgitators:
Houdini was not a fan of the water spouters and gave the reason for their demise in his book, Miracle Mongers and Their Methods. It was simply that the acts were too disgusting for the “lily-livered” audiences to stomach. One unpleasant byproduct of their acts was foul-smelling, yellow-tinged digestive fluids lingering on the stage after a performance.
See what I mean? That's good readin'!