Dog hilariously obsessed with popping bubbles

It has become clear that Marley the dog loves to chase bubbles! He is a beautiful, docile, and affectionate 2-year-old Border Collie/Shetland Sheepdog. A few months ago, in an attempt to find his previous owners, he ran away and was hit by a car on a freezing cold night. Both of his back legs were badly wounded. Thanks to the help of many friends and the internet, Marley was able to get the best treatment and fully recover!