Whilst this is a sad situation, that liver he transplanted was very helpful to 3 people! As for staff laughing, it should have been out of ear shot, but could you imagine doing this job? A good sense of humour is a must and is a very important coping strategy. Your father not dying for over 2 hours was unavoidable and uncontrollable. The time stringency is imperative as you wouldn't want to give a patient damaged organs. It was a raw time for you but don't let one example of anything allow you to make such sweeping emotional statements.
I understand that life gos on, I get that they probably like to have a laugh and a joke, but for god sake it should have been out of sight and out of earshot.
I understand the reasons for the limitations on time too, of course you wouldnt want to give somebody a damaged organ - but thats the sort of thing you should be made aware of before you commit.
and finally, the worst part for me was the letter that arrived 3 months later, there was a cyst or a nodule or soemthing on my fathers liver that shouldnt have been there and it could not be given to anybody.
All of that, for nothing.