Paddy and Murphy were on a flight to Dusseldorf when a message came over the tannoy.....
"This is your captain speaking, nothing to get alarmed about, but engine number 4 has just dropped off, so it will delay our arrival by ten minutes"
Ten minutes later:-
"This is your captain speaking, nothing to get alarmed about, but engine number 3 has just dropped off, so it will delay our arrival by twenty minutes"
Fifteen minutes later:-
"This is your captain speaking, nothing to get alarmed about, but engine number 2 has just dropped off, so it will delay our arrival now by thirty minutes"
Paddy said:- "Blimey! I hope number one's OK,