Inverting the bike for repairs and changing a flat shouldn't be an issue. Hanging it upside down from a ceiling may be. Only way to find out is to try.
Bedding in pads. Yes, to the repetitive hard braking thing. But no to stopping completely when you do it, just come nearly to a standstill, so heat from the rotor doesn't soak into the pads. Also good practice when you are stopping from high speed to a complete stop, don't hold the bike when you are stopped with the front brake, use the back. I learnt the hard way, I've burnt pads on my touring bike, cooked the paint off 'em and made them like teflon.