On a flight from New York to Paris

On a flight from New York to Paris, soon after take-off the pilot announces: "I'm sorry, but we have lost one of our engines. Subsequently, we will arrive in Paris approximately half an hour late." A few minutes later, he comes on again: "Hate to disappoint you folks, but another engine is down. Don't panic - we've still got two going, but now we'll be about 2 hours late." After another few minutes, he comes on again: "Look, I am really sorry about this, but somehow we have lost our third engine. Still nothing serious to worry about, but we will be about five hours late to Paris." After hearing this, the blonde turns to the guy sitting next to him and remarks, "If we lose the other one, we'll be up here all night."