can you have a happy divorce?

so i am a big proponent of divorce. i know that sounds bad. yes marriage is thick and thin, richer and poorer, sickness and health, i understand all that. i am not saying that you should bail once you hit a little bump in the road, but all out misery? yes. if my parents had stayed together i would have needed even more therapy than what i needed from their divorce.
so the question was posed to me last night: can you have a happy divorce? and if the divorce is happy, should you even be divorced in the first place? interesting question.
this came about from a friend of the family who has a pretty good divorce. they live in the same neighborhood because they have kids, and on and on... and it was suggested that if they can still be nice to each other shouldn't they still me married? well where to we draw the line? civility? lord knows a lot of married couples aren't civil to each other anymore, but shouldn't you be happy in your marriage? and if you're not, everyone around you (ie the kids) is going to be miserable too. you should have a chance at finding happiness again. at least that's my opinion.