I totally agree with Sadie about glue possibly being a problem but also anything else sticky like tape, stickers. And when I think about it I only use the mini scissors for paper detail trimming...not even card stock.
Yes, like Melissa said sometimes thin, slippery satin type ribbon needs to be folded at the spot where you want to cut. Yes, you may waste a 1/32 of an inch but it will give you a cleaner cut. I would avoid cutting any bulky ribbon, soft baker's twine or ribbon attached to anything with my fabric scissors...I would use my typical general household scissors for those.