All labour is labour. People who tell you that you're somehow not working-class because you work with your brain and a keyboard, and don't come home covered in grime from 16 hours of breaking stones in the misery mines, are not the friends of labour. They are the catspaws of capital. You are not better (or worse) than a coal miner or lumberjack. Your relationship to capital is exactly the same -- you trade labour for subsistence, to make the capitalist class richer.
Here's the thing: Making more money from a job doesn't change your class. You either own the means of production or you do not. That is the distinction. What the job is, what you make or sell, who your clientele is, these things make no difference at all to the facts of social class.
@mos_8502 Tell the crumbling discs in your spine that you're "not labor" when you finally have that problem from years of desk work.
@mos_8502 @howtophil - Or the pinched nerve in my neck.