The real question is "What HASN'T he eaten?" First surgery: $1200 and almost lost him. Half a tennis ball innards (I think that's what it was) and a quarter. Vowed that the next time he did something so stupid, he was on his own. 2nd surgery: Only $750 because I knew the signs and didn't wait so long. Large paper clip (unwound partly, so it had a point) and a large chunk of cow hoof. He gets NO bones, hooves, etc. now. I promised at that time "NO more surgeries! You're on your own next time!!!" The THIRD time, about $800. Large chunk of Kong toy (piece that had the hole in the end) and a rock. I'd have paid a grand to simply install a zipper in his stomach...much more cost effective.