Shanghai [China] traffic an embodiment of Chinese logic

[Nuhaus]

Well take this for respect for law:: driver turns his right signal on and slows down, starts to veer to the right...

A "T=bone" is when someone hits someone else dead centre on the side. And yes, it sounds as if that particular individual was setting you up perfectly for that style of collision. Whenever I see someone drving slowly in front of me without signalling a turn, I slow down too. More often than not it means they are about to do something really stupid, or, as in your case, they are planning something murderous.