That's because the people who enjoy their lives know: when you are prepared for trouble, trouble comes less often and you cope with it better when trouble does come. Whether or not trouble comes in the form of Dennis.
It turns out that cultures all around the planet have wise old sayings about the benefits of preparing for trouble and not relying entirely on God, Fortune, or anybody else to take care of you.
God helps those who help themselves.
"Heaven n'er helps the men who will not act." - Sophocles (495-406 B.C.)
Trust in Allah, but tie your camel. - old Muslim Proverb
Pray to God, but keep rowing to shore. - Russian Proverb
Meet God halfway. - Russian Proverb
Forewarned is forearmed.
Fortune favors the bold. - Virgil, Roman epic poet (70 BC - 19 BC)
Fortune favors the prepared mind. - Louis Pasteur
"Luck always seems to be against the man who depends on it." - Unknown
"An ounce of prevention is worth a pound of cure." - Benjamin Franklin
"An ounce of prevention is worth a pound of bandages and adhesive tape." - Groucho Marx
"The gods are on the side of the stronger." - Cornelius Tacitus (ca. 56-120)
Get the idea?"Chinese people have a saying that you learn a fence needs mending after the sheep have run away."