At times as a staff nurse being required to do too many things at once, and families needing more that I could give I got to the point that I just didn't give a crap anymore whether they were comfortable, or not. I think that has a lot to do with needing to meet your own needs before you can help others.
Think about it- when a patient gripes at you for not giving them their bath before they were transported to PT, and you have spent the last hour dealing with chest pain, and getting diabetics meds out with breakfast...I personally want to tell them to get over it, but they do have a legitimate gripe. I don't want to make excuses to them, and I definitely don't want to violate confidentiality, so I haven't come up with the "right" thing to say.
But "Get over it you whiny prune" does not seem to be the right response.