Funny.............but I had a DH to PDX the other day on an Airbus with no APU. It took almost thirty minutes to get an air start cart to the plane.............meanwhile we were all frying and sweating like pigs in the back of the plane. Then we're supposed to get a great days sleep for the redeye back that night......................... Our redeye plane was over an hour late, and trying to call ops several times to find out what was going on was unsuccessful. Note to management: You can't run a company with exhausted and overworked employees! Haven't these brain surgeons figured that out yet? In the military we had "safety down days" when this stuff happened so they could figure out how to make things better. Here we get "threatened". Amazing.................