The Undertaker refuses to acknowledge the existence of Mark Callaway, despite the fact that they are both 6-foot-10-inch, 328-pound specimens and were born to the same parents in March 1962. (Rumors have it that they even share the same wife, Jodi Lynne, and the same two sons and live in the same house in Nashville). "Taker" only wants to answer questions about the Undertaker. And his answers have a way of turning every question into a case of morbid curiosity. So what does the grim grappler do when he's not in the ring? "I choose my next victim." Thanks, but we meant: How does he relax? "I listen to the song of choice for that particular mood. It could be any funeral dirge or AC/DC's 'Highway to Hell,' which is a favorite of mine. Anything by Black Sabbath is good." What are the Undertaker's aspirations? "To cause as much havoc and mayhem as possible and eventually become the next World Wrestling Federation champion." It wouldn't be the first time. The Undertaker's curriculum mortae reads like this: After making his debut in 1990, he went on to briefly take the WWF championship in 1992 and again in 1997. From July to August, he was the Federation's Tag Team champion with fearsome Stone Cold Steve Austin. You would think Taker would be in a jovial mood, given the overpowering dominance of his favorite move, the Tombstone Piledriver, but you would think wrong. The ghoulish giant is even offended by hypothetical questions, for instance: Who's tougher, Undertaker or Mean Mark Callous (one of his many previous pro-wrestling incarnations)? "Mean Mark Callous is dead," he says darkly. Sorry we asked, big guy. -M.L.