My pops lets me drink w/ him, when I go to see him in San Diego. He lets me, b/c he knows my mom is the toalitarian fascist neo nazi bitch type of parent, so he tries to balance it all out. We smoke pot to gether once when we were drunk. I jsut flat out asked him about pot, and he said, "well come here, and we'll try it."

I'd reccomend maybe asking your bro aboot how he went aboot it, or just going up to your dad and jsut asking him. DOesn't sound like he shit his pants or anything, so why be afraid?