So the C, upon reflection, is assigning percentage blame? That's precious.
It sounds to me like he's trying to make himself feel better for not having stepped up and taken care of bidness. He could have 100% prevented what in his mind was an error simply by stepping up and doing it.
Decide what you'll do to prevent this happening in the future, and don't lose any sleep over it. Oh, and maybe watch your back around that C. Help like that you don't need.
