Dirty Diapers, Cooking, and Tofu: Vegan Parent Problems

I had just finished cleaning up a dirty diaper, and I had to cook lunch for the children. Of course, I cleaned my hands, and I started cooking, but I smelt a dirty diaper. I washed my hands, aghast. I worked more; I still smelled it. I washed my hands again. What gives? I look at the floor, nothing. Daughter has a clean diaper. Then, I realize that what I have been smelling was really the tofu I was cooking. It had gone bad, even though the expiration date was not for another couple of weeks. What a nasty smell!