If you are aware that your neighbor living next door is into drug dealing and he come seek your advice how to buy Bitcoin, will you teach him?
If his intention is to learn about Bitcoin and not deal in drugs then yes! I will try to explain as much as possible about Bitcoin to them.
What comes straight to mind is embezzling the ill-gotten money, but is this even safe? My other neighbor knows I am into Bitcoin and he learned from me, I guess that's how this other neighbor knew, I told him to go meet the next neighbor but he said he is not ready to teach.
What will you do if something like this is happening around you? Why would a drug dealer want to learn Bitcoin if not for a safer haven for running the business?
My mind isn't settled as I keep thinking different things, what is on your mind readers?
If embezzling money isn't your making then you shouldn't be afraid about it.
He most likely knew about your knowledge of Bitcoin from other neighbors.
My advice would be to let them know about this forum and how to create posts here rest he can do on his own so you don't have to put your leg into the mud (if that's what you're worried about)