Don't be so sure about that. I've stayed in Bangkok during military sieges before and it was pretty much like everyday life. Anyway they are very careful not to harm the tourism.
Don't know. More than two dozen people have lost their lives in the opposition protests, mostly in Bangkok. The situation is very volatile, and unsafe. A lot of people are canceling their hotel bookings.
if you lose your life you are in an area where you are a target.
it really is pretty much like everyday life. the politics in thailand is insane. btw no army here but everyone went home at 10.