I have a watch partner who has thing for ACDC. I find random ACDC etchings all over the ship. Mostly, I find them in condensation. Sometimes I find them on scrap paper. Sometimes I find them in dust. I've started taking pictures of these little offerings and it's strangely become a lovely collection!
This watch partner of mine can often times be found air guitaring on the bridge wing or muttering drum solos under his breath.
I offer you ACDC v1 - I've got some more versions to follow!