Tell them you wont talk to them about Bitcoins again until they can explain to you what Nixon did to the dollar and why you should keep your money in dollar after it devalued 98% since 1971.
Ha! Yes, I'm going to do that, I should have thought of that... (AP United States History student)
If you go that route, at least get your facts straight. The dollar has devalued 98% since the Federal Reserve system was put in place in 1913. It has devalued 82% since the gold backing was severed in 1971.