One year for Halloween, when my dad was in divinity school, he dressed as a priest and my mom dressed as a nun. My mom's older brother then took them to a Princeton alumni party in Cambridge, but my parents were the only ones in costume. So there were a bunch of guys, standing around in ties and blue blazers, who assumed my parents to be the real thing. My parents proceeded to spend the entire evening in the corner, making out. The young men were scandalized. My uncle was in stitches.