An          air traffic control tower suddenly lost communication with a small twin          engine aircraft! A          moment later the tower land line rang and was answered by one of the          controllers. The passenger riding with the pilot who lost communications was on a cellular phone! He yelled, "Mayday, mayday! The  pilot had an instant and fatal heart attack! I grabbed his cell phone out of his pocket and he had told me before we took off he had the tower  on his speed dial memory! I am flying upside down at 18,000 feet and traveling at 180 mph! Mayday, mayday!" The controller in the tower immediately put  him on speaker phone!       

"Calm  down, we acknowledge you and we'll guide you down after a few questions!         

The first thing is not to panic! Remain calm!" He began his series of  questions: Tower: "How do  you know you are traveling at 18,000  feet?" Aircraft: "I can see that it reads 18,000 feet on the  atimeter dial in front of me!" Tower: "Okay, thats good, remain calm! How do you know  you're traveling at 180 mph?"   Aircraft: "I can  see that it reads 180 mph on the airspeed dial in front of  me!" Tower:  "Okay, this is great so far, but its heavily  overcast! So how do you know youre flying upside  down?"   Aircraft:  The pee in my  pants is running out of my shirt collar!!