I was recently told (by someone who was there), of a certain elderly Roman Catholic lady, unwilling to be so uncharitable as to pray that the unhelpful bank teller be damned in hell, compromised by indicating her intention to pray that the teller would be stuck in Purgatory.
I don't bring this up to suggest that the woman was in any way expressing proper Roman Catholic doctrine or approved practice. I suppose that most Roman Catholic bishops would acknowledge that such a prayer would be improper.
I bring it up to highlight the need to distinguish between our own perceptions of Charity and true Charity. True Charity is turning the other cheek, not punching the villain with only 50% of your strength. It's a lesson we can all learn, not just this otherwise sweet old lady.