Details: This poster says in the middle Murphy's Law. Anything that can go wrong, will go wrong. There are a list of senarios of and things that fit under Murphy's Law.
Murphy's law is a popular adage in Western culture that broadly states that anything that can go wrong, will. Regardless of the exact composition and origin of the phrase, its spirit embodies the principle of defensive design - anticipating the mistakes or errors that are likely to occur. Generally, the spirit of Murphy's law captures the common tendency to emphasize the negative things that occur in everyday life.