Because the grinding rod is edible. ...
More importantly, the grinding rod is designed without edges and corners, so it is not easy to scratch the stomach. So don't worry too much. He won't hurt his stomach, so it won't hurt much.
After a while I fell asleep, because I was full and drunk. ...
As long as there is no obvious error state, such as vomiting, wheezing, foaming at the mouth, turning purple all over, it is generally not a big problem to swallow the grinding rod. You can let him rest at home for a few days to digest the grinding rod. Just because the grinding stick won't scratch your stomach doesn't mean it's easy to digest. See if the dog has a bad appetite. Barbara can't get out and is unwilling to move on her stomach. If there is, it may be intestinal obstruction. Otherwise, there is no problem.
..... In fact, what is the probability that grinding bars will cause intestinal obstruction? It's really impossible, so don't worry, dear!