mt,
A buddy of mine does the same thing, cuts through that bone. I never do. I cut the intestine, tie it in a knot and push it out the back side, then cut it off. I don't like to open the deer up to wide so as not to get any dirt inside.
Not to say cutting the bone is wrong, it's just that I didn't learn that way.
When I watch my buddy gut a deer it all but sickens me. Not fron the odor or anything like that, it's just that it takes him forever, lol. He picks at all the insides with his knife. I once told him, get your hands in there, pull the inards out. I want to get home in time for dinner - it was 8am, LMAO (Nut knows who I am talking about, lol)
About 10 years ago, doe hunting with some buddys one buddy killed a little doe (dressed at 46 lbs). He gut shot it on the run, we were driving squares so almost all shots were at running deer. I was one of the "standers" for that drive. After the "drive" was over my buddy is the only one that saw and killed a deer. I stayed to help him drag it out - like a guy needs help to drag a 46lb deer, lol. Anyhow, It was just about noon time and I was hungry (nothing new there) so my buddy turned the deer on it's back as I stood on both of it's hind legs. As he was gutting the deer I was eating a sandwich and drinking a soda. He gut shot the deer so it did smell a bit. He was on his knee's gagging as I was eating, lol. He turned, looked up at me and asked: How in the hell can you eat? I said: Simple, take a bite, chew and swallow. LMAO
He didn't pull the lungs out because he was gagging so bad. He didn't loose his cookies but he came close, lol.
Don