how do you deal with someone online who thinks they're better than you

[c=009E4F][i]i sometimes find this online, someone who acts like they are better than me...and that makes me feel very angry and i have to quell the urge to respond aggressively or act in a threatening way...i can't stand it when someone thinks they are better than me online...because THAT person doesn't know me at all to try to judge me, and i find it an outrage really.

what's the best way to respond to someone doing that?[/i][/c]