This was 30 years ago. I was from Australia. The night is still a clear memory to me. I had a choice and thought, well if I’m going to get drunk for the first time in my life, why not do it in a country where alcohol is illegal? At least I’ll have a story to tell.
I can pop my ears whenever I want, like someone else mentioned. Handy on flights, but I haven’t been able to teach my kids how. If I forget to blink for a bit and then blink involuntarily when my eyes itch, my jaw snaps shut also involuntarily, causing my teeth to snap together. I can roll my tongue, which is apparently a genetic thing. I can hear high frequency sounds, like bats, and rodent repellents. It can be painfully loud when noone else around me can hear them, so they have a degree of disbelief if I mention it.