Been around a couple of smaller homemade bombs. It depends on the situation as to what you do. In the case of when these photos were taken, all hell broke loose, a few small bombs went off at the same time the Thai ARMY opened fire from one end of the road on protestors and snipers started shooting at people from another direction from rooftops. Total chaos.
I got behind a large outdoor refrigerator that was outside a shop and under a small awning, and stayed there filming and photographing as much as I could. Then when I thought it was clear (after the sun went down) I stayed as close to objects as possible and slowly got out of the area, moving from one object to another to cover me. Gunfire in your direction adds a whole other element to bombs going off. People didn't know where to go at first because it was coming from all directions.
The power grid was shut off for this area so after the sun went down it was pitch black except for burning tires. The locals looted all the ATMs in the area.
Good times.