Brink

I do not think there is much you could have done for the first issue other than try and keep the laptop more stable while in use.

For the second issue, I would always recommend that you close anything open and running before closing the lid or shutting it down to help prevent this. Plus, there is a good chance that you could lose data from whatever you had open at the time when you just shut the lid with it still open and running if you were to lose power (ex: battery dies).

Hope this helps,
Shawn