My (unsubstantiated) guess is weed. What a silly thing to flag someone for. Unless there is an MLB rule that bans anyone who smoked in college or HS. ??? Wouldn't you be suspended if you get caught with weed in your system in a drug test under MLB policy? If so, it's not a silly thing. No, it's a ridiculously silly thing because that's what 17-20 year olds do. They drink, they experiment with drugs, they want to sleep with hot chicks, etc. As long as they can handle themselves like normal humans, it really shouldn't be an issue. "Oh ARod, there's a little weed in your system, sorry we aren't going to draft you #1." Nope, don't think that's the way it's working. Read my quote again... MLB do test for weed and you do get a suspension on their first positive test. I checked after my first post. I meant it more as "Ok... So you did weed in high school/college. BIG DEAL. But... will he stop or not when we sign him? Is he a pothead or did he just experiment a few times..." I could see a case where a team talked to some friends or scouts and they said that he likes weed a lot and probably will continue to do it. Then he runs a greater risk of testing positive in a drug test which could result in a suspension. So no... it's not a silly thing IMO to flag him (only if he's seriously a pothead and will keep smoking weed). It can also lead to other drugs as well. Now... would it stop me from drafting someone if i was a GM and knew that he smoked weed in high school/college? No, but I wanna be assured that it won't a big issue down the road. A-Rod example is stupid. There was no drug testing back then. Bryce Harper, on the other hand, would work. I still would draft him tho.