The usual devastating put-downs imply that a person is basically bad, rather than that he is a person who sometimes does bad things. Obviously, there is a vast difference between a "bad" person and a person who does something bad.
Besides, failure is an event, it is not a person — yesterday ended last night.

People would always be fighting over resources: land, animals, water. When I grew up, I wanted to find a way for people to listen to me – but for that to happen you need a title. At that time, I didn’t realise that sports could help me to be the way I am. Those two sides of me came together, to help me work for peace.