I run a contractors firm and one thing we do is provide holiday cover for companies. I normally work the shift myself and it is in our contracts that we require 1 months notice. One of my customers a retailer does not really like the 1 months notice as he lets his staff book holidays with 2 or 3 weeks notice. I said this was alright. Anyway I have gone to the company today and seen a note saying ask arnie123 to provide cover on Monday 26th when I see her on Thursday. This would be 4 days notice and I have already planned a day out with husband and son on Monday. I need to turn this one down.