In the summer of 1991 there were a series of televised vignettes featuring the Ultimate Warrior turning to Roberts for help in his feud with The Undertaker. In the set-up, Roberts explained to Warrior that, after passing three tests, he would have the "knowledge of the dark side" to defeat Undertaker. The segments included Warrior being locked inside a coffin (a reprise of an incident that occurred on "The Funeral Parlor", hosted by the Undertaker's manager, Paul Bearer; earlier in the year); the Warrior being "buried alive" in dirt before being abandoned; and Warrior walking through a room full of live snakes to reach a chest containing "the answer". During the latter segment, the Warrior opened the chest, only to be immediately bitten by a king cobra (actually a rubber prop). As Warrior "weakened" from the effects of the cobra's strike, Roberts was joined by The Undertaker and Paul Bearer, revealing the three were working together all along; Roberts closed the final segment by proclaiming, ""Never trust a snake"", turning Roberts heel for the first time since 1987. A series of matches were planned, but the feud was canceled after the Ultimate Warrior was fired by the WWF the night of SummerSlam.