Drywall patching spade that is a stain scraper.

Many years ago, I lived with two slobs. They often left dried food on the counters, floors, and other flat surfaces (like the stove top or floor of the oven). In addition, one of them fed their dog with human food that gave it the shits, and was not attentive towards talking the dog out to poop. So the floor would have clay-like puddles of drying dog diarrhea. This scraper was used to deal with the dollop of whatever organic matter was dried onto the counter, floor, or otherwise. Then washed in the next dishwasher cycle.

"But you'll scratch the [surface material]!!!"

I don't care. My house, my problem. Clean up after yourself, for fucks sake. Plus, I was always wiping down the counter with cleansers, so any cross contamination was not a concern. I am a voracious cleaner.

Those slobs have left, the dog passed away, and the dogs my wife and I have now are mostly housebroken and don't have diarrhea. The scraper only rarely gets used these days. When she moved it, I had to explain to her what it was, though.