frame:RegisterUnitEvent("UNIT_ENTERED_VEHICLE", frame.unit, displayed);
frame:RegisterUnitEvent("UNIT_EXITED_VEHICLE", frame.unit, displayed);
frame:RegisterUnitEvent("UNIT_PET", frame.unit, displayed);
frame:RegisterUnitEvent("UNIT_ENTERED_VEHICLE", frame.unit, displayed);
frame:RegisterUnitEvent("UNIT_EXITED_VEHICLE", frame.unit, displayed);
frame:RegisterUnitEvent("UNIT_PET", frame.unit, displayed);