scientific expressions used in everyday conversation. by Drew Piston
This law states that "anything that can go wrong will go wrong." A hypothetical example might be when you forget your sandwich, your bicycle gets a flat on the way home at lunchtime, and when you finally get there, sweaty and hungry, your girlfriend dumps you for your best friend. "I certainly won't get arrested for breaking Murphy's Law today," you might joke. "Ha-ha-ha-ha-ha."