No! Its not normal! Unfortunately many city shelters are dirty and the animals aren't in great living conditions but hitting, pushing and yelling are not acceptable! I am sort of near you so I will help you out if you want me to. I'm going to ask some people at the humane society here what can be done. Our facility is very clean and we have tons of volunteers giving all the dogs and cats so much loving and training. Its so hard for me to visit city shelters. I should probably go work/volunteer at the city one in Austin because I'm sure those dogs need it more. I'm afraid emotionally I wouldn't be able to handle it. Anyway, let me know if you want me to help you do anything in protest to that shelter. I agree something needs to be done.