My mom and I used to hike a lot with the collies when I was younger. We got them each a backpack to carry a water bottle and a few other things like their leashes when they were off-leash. Cody never minded a single bit, but Willie always seemed a bit less chipper when he had his on so I got to where I put it on him less frequently. Most people thought it was cute when they saw us, but I had one lady confront us one time about Cody, saying it was cruel to make him carry stuff.. Meanwhile he's trotting around happily with his backback on, his tail up and sniffing around.

Maybe she was from Peta