"Nobody Cares"

I was passing some hipster on a rough stretch of road just outside of downtown. The roads are bad at this location and many cyclists swerve to avoid seemingly random potholes and changes in elevation.

So, passing this guy I say the common "on your left" to warn that I am passing and please don't swerve left to avoid a hole and hit me. His reply was "Nobody Cares". WTH? I though commuters were shamed for doing the opposite. My reply was "Oh yeah?", not the wittiest, just caught off guard.

The nerve... must be the warmth bringing out the sunday coffee shop sprint riders.