Will that get people to cooperate or will it just get them to trample each other? I'd be worried people would just hear "free drinks if you get on the plane qui

Will that get people to cooperate or will it just get them to trample each other? I'd be worried people would just hear "free drinks if you get on the plane quickly" and ignore the part where it needs to be everyone. Or you might just get a teetotaler blocking the aisle.