Check bags are fun. I just make sure there won't be anything illegal in my check bag which is forbidden at a cabin of a plane. Just leaving things like scissors and such out of my carry-on things in order to avoid troubles with some certain airline, y'know. ↗
I have one brother, John, an airline pilot, who is seven years younger. He's adopted, though we're still blood related - he's my cousin. My parents couldn't have any more children after me, so when Dad's brother died, they adopted John, then just a baby. ↗