Quote from Dick in Hotel Dick
Dick: No! I've decided to tell Mary that I am what humans would call, in their galacto-centric way, an alien. Harry: No! Sally: Are you crazy? Dick, why are you doing this? You've never blown your cover on any other mission. Dick: I've never felt the need to. I keep having these feelings. Sally: Ai-yi-yi. Dick: It's this fleshy human slipcover. Oh, sure, it's dashing, tall, manly, washable, but somehow it just makes me feel so awful about deceiving the woman I love.