Last Halloween, it was freezing outside, so I went trick or treating as Hermione Granger (robes, scarf and all). We came up to this house, and the "gravekeeper" told me to go and investigate this extremely obvious coffin with someone inside. When the man inside jumped out, he didn't scream, he only said "Oh, so you're in Gryffindor? My bad! Congratulations!". It was amazing. OLAM.