when I used to make promises I cant keep it has to do with my complex of not wanting to look "dumb" or feel "inferior" infront of someone who's more experienced and well educated. I found this reason consistent with people who are the same. It's more shameful for a person to admit to someone that they cant perform a simple task, such as excel, because it makes them feel...whats the word Im looking for...stupid? anyway, I cant say this is what happened in this case but I'm speaking from my own experiences...