 You didn't do it. Why didn't you do it? It's not my fault. No one told me. Or, well, I would have done it, but so and so didn't do that, so I couldn't do it. Whatever excuse it is, where they're not accepting responsibility. To accept responsibility is to say, there might be actual extenuating circumstances, and I will not use those as an excuse. I will conquer those problems to get the outcome.