If you have a dog or have ever sat down in a dog park for a bit, you've probably noticed that little dogs are super aggressive towards bigger dogs. The big guy or girl just want to play and the little nut job barks its head off at them. It's like they have "little man" syndrome. I'll take a big dog any day or the week over a "purse dog". The only bag your dog should be able to fit in is your hockey bag.