I'm sorry you've had a horrible experience like that, FBW, but FR is hardly the only airline that's ever had an engine fire, it can happen to anyone. You're still here, so I assume the incident was handled professionally and all was well in the end.
Getting back to the toilet roll again... did they not have paper towels on board either? I happen to know that usually FR c/c are plagued by ridiculous amouts of napkins every day, so cannot imagine them running out. I personally don't care about the shape or colour of the paper if I have to wipe my arse (if this is too much information to someone, am truly sorry
), and can't quite understand why this would stop anyone else using the toilets. And if the said loos get blocked, well, that should teach the company to supply more toilet paper in the future!