I think people are supposed to expect good things to happen to people whom they like; (proportionally) bad things to people whom they dislike; and neutral things to people whom they are neutral towards.
That's the bare minimum. Below that, I wouldn't want to associate myself with said person, and above that seems somewhat illogical.
On a side note, having a word for that seems pretty desensitizing.
A man builds. A parasite asks 'Where is my share?'
A man creates. A parasite says, 'What will the neighbors think?'
A man invents. A parasite says, 'Watch out, or you might tread on the toes of God... '
"Rejoice not when thine enemy falleth, and let not thine heart be glad when he stumbleth: Lest the LORD see it, and it displease him, and he turn away his wrath from him." (Proverbs 24:17–18, King James Version).
You mean hiding it is good and showing it (through laughter) bad?
oh gosh I only realized the dodgy grammar in that post now that you quoted it. Well yeah, I mean, say if you see somebody suffer a misfortune maybe it's not the best time to laugh even if you want to..it's a bit of an oversimplification but i'm just making a point. The most important thing to consider is whether your action will hurt the person's feelings unnecessarily and if the answer is yes then it's best to not do it.
Aren't there really two types of Schaedenfreude - personal and impersonal.
In the case of impersonal we aren't so much laughing at the person so much as laughing at the situation. After all we don't even know the person. If we subsequently discover that the situation has caused some real harm to the recipient then our impersonal schaedenfreude usually turns to sympathy and we very quickly stop laughing and feel bad about ourselves. Don't we? Well I do anyway.
Personal schaedenfreude is directed at someone you know and is usually the result of some sort of envy or revenge. It is quite different from the above. We aren't all saints. It's a perfectly natural human reaction but, as @Giggly says, you usually have second thoughts quite quickly because you know it isn't adult behaviour.
We are indeed hardwired in certain ways. Sometimes our hardwiring leads to a conflict of interest.
I'd say the need to distinguish between each type of Schaedenfreude is strong enough to justify using different words for each.
Fi (95%); Ti (90%); Ne (75%); Fe (60%); Ni (50%); Si (50%); Te (15%); Se (5%)
"INFP values but INTP skills" describes me best of all
"How dreadful!" cried Lord Henry. "I can stand brute force, but brute reason is quite unbearable. There is something unfair about its use. It is hitting below the intellect." ~ Oscar Wilde - The picture of Dorian Gray