My GM actually pulls stuff like this on me, not the other way around, and mostly on their personalities. When I sent in a spirit of man to announce myself to a bunch of crazed LARPers (to make sure I wouldn't get shot at if I went to say hi), he started with "GREETINGS, PUNY MORTALS". Fortunately, it went mostly uphill from there. Other examples include earth spirits wanting to arm-wrestle NPCs or being disappointed when the situation I summoned them didn't escalate into a fight, and a spirit of man starting with "Greetings, master. Who shall we kill today?" when the plan was not killing anyone.