Unprofessional

I'm from pick n pay now,II have never seen someone who calls himself a manager act so unprofessional, the way he treated stuff in front of the customers,he must at least have a decency to be private about ,not call adult useless when he is the one who is useless always reading a paper or chewing in the store instead of helping customers ,this people his says are useless are the ones we depend on when we doing our shopping,in that shop there is always something that makes you not to go back there,this people need some training on how to treat customers and staff,its really sickening