We were on a walk with my sister's dog's and well her pug is a bit overweight and he refused to walk any further. Luckily we had the stroller and he took a ride. LOL!!! We thought he would jump out but nope he stayed in for the ride. :) LOL! We did have some genuine concern for him because he was breathing so heavily and it sounded terrible. Even after we got home he kept up the load hacking but I guess the deep heavy breathing is normal for a pug. He is 6 years old!