Come on draglift, an agreement is an agreement
This made me laugh the other day en route. It came to Cabin Crew break time, the CSD came up with "a problem" apparently the crew had to have 3 hours horizontal rest each, but with our ETA they were only going to get 2hrs 50, so could we slow down?
Well the math was done and we worked out we could gain 15 minuets (and burn a considerable amount of extra fuel) that still was not good enough, so in order to get 3 horizontal the breakfast service wasn't done.
You could not make it up