Stevie Starr, the amazing regurgitator was at Mines tonight. Rather cool actually since he was literally just on The Tonight Show with Jay Leno last night. From what I could tell, he really was swallowing all the objects he put in his mouth.
I am by no means a medical professional, but I with a bit of logic and knowledge of human anatomy I suspect that Starr simply has the ability to control his pyloric sphincter, a muscular valve between his stomach and duodenum (a digestive region between the stomach and start of the small intestine), and his lower esophageal sphincter. In short, he can trap object in his duodenum, his stomach, and perhaps even his small intestine and esophagus. Again, this is only my opinion. Regardless, the show was very amazing I would recomend that everyone see it, if given the chance. Starr is very entertaining and knows how to work with the audience. He swallowed everything from a small lightbulb, to a small 8-ball, tacks, rings, a locked lock (which he unlocked after removing the key and swallowing it seperatly from the lock, then relocked with a ring inside, removed the key and brought back up), sugar (which he brought back up dry), and even gold fish (which were still alive). Check out the gallery for more pictures of this truely amazing man from Scotland!