Avoiding any danger can lead to compulsive action that is guaranteed to make you unhappy. So never forget the disinfectant if you have to go to a foreign toilet in the middle of a concert and make sure five times that you have really locked the front door.
The Pursuit of Unhappiness
What can we do daily against our possible happiness? After reading, you too will understand why you would like to slay the neighbor you asked for a hammer.