Someone said :
I will laugh freely if a relative or friend trips or goofs up in some way, a regrettable trait my big sister instilled in me. But I would never take pleasure in serious pain or misfortune.
There's that. Someone says how they emailed the wrong person with something embarrassing, you giggle. Someone says they have cancer (for example), you get upset. The little things can make you laugh, but not the big problems.
Gore Vidal famously said about success: "It is not enough to succeed; others must fail." But he was a bitch and, haha, he's dead.