I have a pair of rounded end Wiss scissors. They were a special purchase from Lee Valley, and quite well made. I recently discovered just how sharp they are.
One of the blades had some sticky substance on it. I put some Goo Gone on a paper towel and rubbed it along the blade. It not only removed the gunk, it also made quite an incision on my finger tip.
The moral of this story is to keep your fingers well away from the blades when cleaning.
Ken