Unfriendly security personnel

Mall of the south branch please teach your security customer service etiquette Walked in few weeks ago they had just reshuffle the shelves but bot yet changed the row boards so I was with this lady on the meds side and I told her I was looking for a humidifier and a guard was not standing far off to where we were I said 'yooo they moved everything not sure where to look" and lady suggested we ask the guard. I said "hahaha he probably doesn't know as we are also confused " he took offense and started saying I insulted him and that i undermined him in front of "umlungu" I asked him where was his sense of humor his face changed and he kept on saying I have insulted him .abuti if ure going to be moody and triggered by innocent comments from customers just don't work with people .