Thais like to take short cuts on the road, example crossing the yellow line on a corner, or coming over into your lane right next to you as you both go around a bend. It is crazy here yet if you live here long enough you know how it is and what to expect.
I do remember traveling in India, the rule was if the vehicle is bigger than you, they have the right of way. On an 14hour bus journey, the driver would stop every so often, jump out at a roadside shrine and do a prayer, while I was in the back of the bus doing a prayer to every god under the sun.