I have some semi-feral cats that I feed in the garage. They can come and go thru a pet door. Last evening I heard a cat fight in the garage and I went to check it out. Two cats were fighting and scrambling to get out the pet door. One was a semi-feral intact male and the other was a feral cat. Due to the size I'm assuming he is a male also. I noticed that the garage floor was splattered in feces and urine. Not sure which cat this came from. It looked like one cat was getting the s**t knocked out of him literally. The semi feral has been around here since he was a kitten. Not sure where the other one came from. Is this normal behavior? This is the first year that I've been feeding the cats inside.