Is it normal to want to punch the person you work with but like

This guy that works for me is really a good person and we always play practical jokes on him or the two of us gang up and play them on other people. There is an age difference and I completely take to him as my little brother which leads me to my question is it normal when I don't think he's listening to want to punch him or sometimes just walking down the hall push him into the wall? I know it hurts but just a little bit and it's really damn funny
As