Hi my dog Bentley is a six-month-old 50 lb lab mix. He loves to chew on beef tendons. I usually watch him while he chews on them but I don to the bathroom and when I came back noticed that he had already finished the 10 that I gave him so I'm assuming he swallowed about a four inch piece. He's acting fine. I will keep monitoring him but my question is how worried should I be as I'm already mad at myself for letting it happen when I am normally so careful to take away his chews when they get small enough to swallow. Tgis time he just finished it very very quickly. The tendon was a very thin one, as it was to the point of being translucent.