Parents are not easily grossed out. I remember the first time my daughter got the stomach flu, it didn’t even occur to me to be disgusted when she covered my shirt in vomit and then nestled into it. In fact, sometimes what is gross to a childless person provides comfort to parents; the freely moving bowels of your child, for example.
My daughter’s daycare is just two blocks from my office. When she was an infant, I would breastfeed her at lunch time. Naturally, I was always equipped with a pocket full of clean tissues to catch spit-up. One day, having returned to my office from a feeding, I found a tissue soiled with spit-up in my pocket. Some force of nature compelled me to sniff it. It was a sensory delight! It smelled exactly like my girl. My eyes filled with tears and instead of throwing the tissue in the trash, I stuffed it back into the pocket of my trousers; saving it for another surreptitious sniff.