I'm sure it did man. It is a great lesson to learn. Making excuses wastes so much energy and not only of our own but also of those that have to hear it. I did a post about it though I cannot remember which one now.

If you are going to be late for example. Say you are late, when you expect to finish and nothing else. One word more becomes an excuse and wastes so much energy not to mention can really upset people that are relying on what you have said.