The Deal Breaker!

The deal breaker! Whats the point when you say ok enough, I can't take any more? There are many different things that will happen in our lives, and let's just face it, stuff happens! You draw that line in the sand and say this is my stop point.  In many cases, we tend to go into a situation that we know is bad and set a stopping point for if it gets worst, Why??

Theres the seen and the unforeseen, and sometimes we plan for both. Some may call it a contingency plan or a fail-safe, which means this is how I recover quickly? 

Why do we plan to fail? Is it a bad thing to plan to fail? Is failing bad? Why do we put ourselves in situations that we know may fail?