While boarding flight 935, 2 guests service agents began to scream at passengers as they were boarding the plane. This is an international flight, therefore I understand they may be some language barriers as most guests boarding the flight did not speak English. However, Under no circumstances is it Acceptable for agents to scream at passengers and threaten to forcibly remove of the flight if they choose not to check in their carry on! I was even screamed at because my carry on was way too heavy for the agent . As an airport employee myself I do understand the stress that this industry can bring . That is no excuse for poor service and blatant disrespect.