A *rock*! As in what Charlie Brown got in his Halloween bag. Most likely a sedimentary carbonate rock called dolomite. Known for its attractive sparkly white color, it is often used in decorative landscapes, or in our case, in the pot of a fake tree we have in our living room.
How the hell does a dog eat a rock? A frickin' rock!
He recovered from surgery fine, and I am told "all his organs look nice and healthy." But his blood pressure was really high, and we had been told about his heart before, so... it looks like Ahfu may be put on blood pressure meds. I didn't even know dogs could get hypertension. Maybe that's why he's so crabby. I hope the meds aren't expensive.