I think he's pulling your leg. Believe it or not, Worf is developing a sense of humor.

Related:

• DATA : Captain, I believe we are being probed. PICARD:
  It appears so Data. Councelor, do you sense anything...
• Ah...Worf. We are so much alike you and I. Both warriors,
  orphans who found ourselves this family. I hope I...
• For what it's worth, I understand your bitterness. With respect sir,
  you cannot. I am asked to give up the very lifeblood...
• Worf: "I believe I know why our messages are not being answered.
  Gowron has been rewriting Klingon history." Riker...
• Picard: "The replica was very convincing?" Riker: "Very convincing.
  but not perfect." Picard: "Not perfect in what way...
• Q: "You don't believe me, do you? Do you think I would humiliate myself like this?" Riker:
  "If it served your purpose, yes!" -- "Deja Q", Stardate...
• Riker: "I hope I'm not interrupting." Ro and Troi: "No." -
  "Conundrum", Stardate 45494...
• Riker: "Who does he think he is?" Troi: "The quartermaster of the supply yard,
  with information you need." Riker: "Right." -- "Unification...
• Why her? "Sir, I believe she was the intended target of the abduction." 'Why would they want to take a Federation hostage?
  Their fight doesn't involve us.' "It does now." ...