[jman220]

I showed my mother my pokertracker database, and it, along with a detailed explanation of +EV wagering, and a spreadsheet of all my buyins/cashouts for the past two years convinced her. Of course, I'm 25, do not live at home anymore, and my Mom has little to no say over how I spend my money, but its nice to not be thought of as a degenerate gambler by your parents.

Edit: I do however advise that you do not show your parents your pokergraph. I showed this to my mother as well, and it was the only part that concerned her. (Explaining the concept of variance is tough).