There was a great eruption of a south sea island volcano, and the witch doctor appealed to the tribal chief (Fergus McCarthy), demanding that a virgin be sacrificed to appease the volcano.
The chief (Fergus) apologized, "I've used up all the virgins myself, so I guess we'll just have to get used to the noise."
"What?" said the witch doctor "What the feck does that mean? You just ruined this joke. Pointless, utterly pointless joking with you."