I was reading a battle mechanics guide and in the section on Lucky 7s it said that the condition could be triggered by an in battle character, party member or enemy. In my long long history of playing FF7 I have never once seen an enemy trigger Lucky 7s, but then again I have never seen one of my party members trigger it without deliberate tinkering on my part.
Has anyone here ever seen an enemy use Lucky 7s? I imagine that would be something that would completely ruin your day.