First off get off my nuts.
Secondly the reason i want to do it because he believes weed is a life-destroying drug that is addictive and will make you forget about your family and all your goals in life and go into a killing frenzy. I want to prove him wrong and show him that marijuana is a medicine (for the soul
)
Buddy, it's one thing if one person tells you it's a dumb idea- but you've got a lot of people here telling you it's a bad idea. Marijuana CAN be a medicinal TO YOU, but perhaps he takes pride in knowing he's never consumed it.
IF he wants to try marijuana, it should be done on his own terms... Obviously he can come to you if he's interested, but he's not. For you to poison your own brother like that is such a terrible thing to do. If I were your brother, and you poisoned me... I would never speak to you again because to do that is such a low pathetic inconsiderate and immoral thing.
I like the occasional line of cocaine, I can find medicinal qualities in it, but not everyone else likes it.... Of course I would never come up with an idea so lame as poisoning someone with it...
All I can say for your is
How old are you? Only a child could possibly think that's a funny thing to do to their own brother who has never smoked before, or even a logical way to introduce someone to how good cannabis is.