next door to me have just bought there self a 11 month old black lab.They took it out for a walk with me today and after 4 mins of playing it was making this choking or coughing noise it just didnt seem right.It didnt stop the dog from playing it just didnt sound nice,I have told them to get it to the vets but they said they would leave it till the end off the week.We all no it needs to go to the vets but what more can you say to people who just dont listen.