Facebook just reminded me I posted this on Twitter on in 2017. On those accounts, only a few of my followers understood. I bet a lot of folks understand over here.

"The thing about a SCSI drive is that you have to power down the equipment before you detatch it or you'll fry a board. #protip"

FWIW my first hard drive was a SCSI drive the size of a family bible. It cost $300 for 30 Mb and I don't think I ever filled it. For reference that's about eight mp3s.