Typically, if someone's meal makes reappearance in an emergency room, the way it comes back is conventional, although unappealing. A Texas man, however, ended up bypassing any traditional route of regurgitation or elimination when he showed up to an ER with a stab wound in his abdomen [source: Lang, et. al].
Apparently, the patient had just eaten before the stabbing. So when he coughed, the contents of his stomach came spilling out. The ER staff had to deal with cleaning up the inadequately digested components of a traditional Texas cookout -- barbecue and corn -- inside the man's abdominal cavity.
The next unusual ER visit may not be as gross, but you'll probably find it more disturbing.