Failure

I made a promise today and I'm not going to be able to keep it.  I promised someone working alongside me with a client that I'd deliver a large volume of information to them before I went to bed this evening.  It's 10.40pm, I'm knackered and I'm off to bed - work not done!  Sorry guys, if I don't go to bed now, I'll not be fit for any work tomorrow :-{