After 10 years of riding bikes and scooters in peak hour traffic, I have become immune to being cut off. Its pretty much a regular occurance, and not it does not really bother me. Depending on the situtation, I usually either give the finger or death stare unless I get some sign of an apology from the driver. One thing I have noticed however, is that often a car will cut you off, so you get on the horn to get the drivers attention. Then they see you, you look at them, they look at you and then they keep merging? WTF? And to top it off they are sometimes trying to apologise whilst they keep merging into you?