Perhaps in the sense of looking at the smoldering rubble of an aircraft someone warned you not to take. I think the joy is in missing the tragedy and not in the fact that others who had similar warnings perished. In a real sense "there, but for the grace of God, go I".
When you are in heaven, will you take pleasure in observing the torments of the damned in hell??
Maybe if its Hitler, Pol Pot, or the guy who came up with "New Coke".
One of my favorite Lewis books is "Till We Have Faces".
Yes, well those are the easy ones. It's a little tougher when you're talking about the nice little old lady down the street who just does not happen to believe.
For me it's a lot tougher to contemplate the situation of my loving atheist parents, who if orthodox Christianity is true are now in the "everlasting fire that was prepared for the devil and his angels". I decline to worship a God who would do that, eternally.
It seems to me that if Christians desire to emulate Christ, they should curse and condemn their friends and relatives who died unsaved. The last thing they should do is pity them - Christ certainly does not.