Well, in this case it was Wednesday and I'll be working for another customer on Thursday and Friday (they know it) so that feature must be completed by Wednesda

Well, in this case it was Wednesday and I'll be working for another customer on Thursday and Friday (they know it) so that feature must be completed by Wednesday night. They accept that the quality of a feature worked on for one day will be less than the quality of a feature worked on for two or three days. Costs.