Flying from MSP to ATL this morning at 7:45 am. There is one male flight attendant standing by the boarding door, just staring at passengers, not even greeting them. As we are getting ready to push back, one of the GA's was on board. The flight attendant starts yelling at him to get off of the plane, so we can get going. When it comes time to service, he drops three napkins on my tray (I was sitting in an aisle seat), and commands me to pass them out. Then he drops three Biscoffs, and three bags of peanuts on my tray table, and again says, "pass these out." My three year old son has more manners than this. He always says please, and more often than not would phrase it in the question, "will you please hand these out?" He then pours my soda, and then puts my neighbors Orange Juice on my tray, and, says, "pass this down." He makes his way down the aisle, hitting just about everyone that is seated on the aisle, then coming back up, he bangs the cart into a Delta Exec sitting right in front of me. After service, he sits down for the rest of the flight, while his counterparts collect trash, pass out water to everyone, and prepare the cabin for landing. He didn't even bother to help them at all. As a former NW flier, I have found that more often than not, the non-union Delta attendants outserve the NW attendants.