CANNIBALS?

A tourist goes to Africa and asks his tourist guide while walking in the jungle, "Are we safe here? Aren't there cannibals around here?"

And the tourist guide says, "Yes. You can be sure there are no cannibals in Africa."

And the tourist says, "But there may be still some cannibals?"

And the tourist guide says, "No, rest assured. We ate the last one last Monday."