I went into a music shop to buy some new strings. I have been playing guitar for twenty years. I told the guy behind the desk what strings I needed, for an electric guitar. He quizzed me about it, then insisted that I don’t have an electric guitar, I have an acoustic guitar and need acoustic strings (this is without knowing me, seeing my guitar or knowing what make it was, presumably in his mind women only play acoustic!) I kick myself that I still bought a set of strings from him instead of just walking out, but this is the problem, so long as men dominate the market women have to tolerate sexism just to get what they need.