Minor field issue, no idea if present in vanilla or not:
In the Barracks off Junon (Left):
There is a soldier who says
"Oi. You're still on duty!", "Then again, I'm hardly qualified to grill people.", followed by
"Whatever you do, don't turn into a slouch like me."
He'll keep repeating the second line every time you try to talk to him.
The hitbox for the dialog is very off. I can talk to the (heater?) in the next room over, or the couch on the other side of the room, and still get this line of dialog.
edit: I should add this is during the initial visit to Junon, when Cloud is alone and dressed up like a Shin-ra goon.