Very nice! I had an unpleasant case when my dog swallowed part of my beach flip-flops and caused an upset stomach. I noticed it at the wrong time and, unfortunately, could not help him. I suffered for a long time with him to somehow raise him to train him, but I did not change anything in his behavior. Now I have a new friend, but before I acquired him, I studied this breed very well https://www.oodlelife.com/why-is-my-dog-so-hyper-at-night / This dog is much calmer, and I don't have the same problems as the previous dog. Your trainer must be a good specialist. Be careful with your four-legged ones.
@Hoselanel welcome to the forum and sorry about your dog. We have golden retrievers and have to be careful what we leave lying around. Our first one would pick up anything especially when we were having dinner, he would go around trying to find something to hold in his mouth. He swallowed a elastic band and one of my cotton handkerchiefs but they came out the other end with no problems. Before we had him he ate a bag of carrots and the plastic bag but he was fine, the bag came out the other end.