Working

Why do people always wait till so close to an event before informing you of it?

They asked be at 17h15 yesterday, if I could come in to do demos between 10h00 and 12h00. I'll go in to do them, to help get my 10 hours of work in this week, so I can have thursday/friday free. It's just that I was planning to work on a final assignment that is due Wednesday, 11am.

Oh well...