When using a knife, unbeknownst to your knowledge that was just professionally sharpened, please be careful when cutting onions.
I was having a hard go of it last night and a friend invited me for dinner. I helped contribute (anything to work in the kitchen) by making my chickpea salad. I was chopping said onion when... /slice/.. on my thumb. Don't worry, I caught myself in time and it just cut the nail - thank God. No skin was broken at all, but let me tell you, it was a fraction of a millimeter. If I hadn't watched what I was doing.. oh boy.
That's all :)