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When mind-controlling an important figure such as a princess, always have her publicly show herself off using her real name, and then walk out with her without disguising yourself in any way, so that there will be witnesses once someone realizes she's missing. Be sure you do this at a brothel from which you explicitly purchase her services and then never return her to, too, just to make sure that even if nobody ever realizes she was the real princess you'll at least be the guy who apparently kidnapped the sexy new girl who was probably expected to make them a lot of money.