Weirdly, the thing that reminds me to wash behind my ears is that I saw a video where a guy killed another guy, and he almost got away with it, but several days after the fact, they swabbed him down for samples and found that a tiny bit of blood from the victim had landed behind his ears and in all the days since then he had not washed it off.

Now I don’t go around murdering people or anything, but for some reason that factoid pops into my head every time I take a shower.