Two Missionaries

Two missionaries in Africa were apprehended by a tribe of very hostile cannibals who put them in a large pot of water, build a huge fire under it, and left them there. A few minutes later, one of the missionaries started to laugh uncontrollably.

The other missionary can't believe it!  He said, "What's wrong with you? We're being boiled alive!  They're gonna eat us!   What could possibly be funny at a time like
this?"

The other missionary said, "I just peed in their soup!"