Once there was an old lady (maybe not that old) named Lucky Lori who used dull kitchen implements all the time. She had heard that doing this could be dangerous, but she didn't listen because she knew that she was Lucky Lori. She chopped, sliced and diced with dull knives and nothing bad ever happened. She opened cans with dull openers and nothing bad ever happened. She grated with dull graters and nothing bad ever happened. And everyone around her said, "This time you were Lucky, Lori. Next time you might get hurt." But Lori didn't listen. She kept on slicing, dicing and chopping, opening cans and grating and still nothing bad ever happened. Until one day, when Lori's luck ran out and this happened:
I realize that it doesn't look that bad in the photo, but it is. This injury has affected almost everything I do on a daily basis - can't open jars, can't hold a fork with my right hand (and I'm not an even passable lefty), can't cut anything, it hurts to open the car door, and I seem to bump it on everything, which really hurts! Plus, it really scared me because it bled for a really long time. You don't want this to happen to you, I promise!
So, my kitchen tip - don't be a Lucky Lori. Use safely sharpened cutting implements.