....and during one of the original iPhone builds, my phone was sitting docked in an iPod HiFi playing some music whilst I was debugging some fresh-off-the-line boards.

Then someone phoned me. My ringer volume was at maximum, and it turns out that back then, the software build was such that the ringtone (alarm, of course) was played back a full volume through an iPod HiFi. If you've ever tried this, it's f-ing loud, really very very very loud.

Pretty much half the building was out the door thinking there was a fire before the (collapsed double laughing) software guys hung up...