We see mistakes and failure as shameful things. And we usually identify with them:

You can only learn from a mistake after you admit you've made it.

When you can laugh at your own mistakes you know you've accepted it and no longer judge yourself on the basis of one single event. 

• Stupid: Absurdly dumb things that just happen. 
• Simple: Mistakes that are avoidable but your sequence of decisions made inevitable. 
• Involved: Mistakes that are understood but require effort to prevent.
• Complex: Mistakes that have complicat...