In general, our speaking etiquette is quite extensive. When aliens and spirits speak to us, it sounds intentionally rude. This is mostly because some obvious and simple things are considered impolite. Part of this could be a simple translation problem; other things are just typically expressed in a non-obvious way. The main reason for the use of these indirect forms of politeness is that humans very often treat each other negatively, compete and take advantage of each other. In our recent past, there was much more inequality than there is now. There were hierarchical differences between casts, classes, races, sexes, ages, groups, locations, administrative positions, professions and more. The history of restoration of rights of humans, making humans equal reflected much on human speech etiquette.