So i been hanging with some "old heads" (term for OGs, or the older dudes u look up to and chill wit in Philly) and this one dude is a straight wet had... He has it in and he samples everyone else shit. we were in the chinese store tryin to get some vanilla dutches for sum weed we had n sum bitch walked in called "guac" or something. he gave her a dub and she dipped a ciggarette in that shit for him... he started smoking in the store, the lady told him to get out, so we did. outside i took one puff, then another, and a third. I was good, I felt nothing at first, then a weird feeling. Euphoria, mild anger, and I felt good a bit. He was fucked, I couldn't hear him talking, dudej ust mumbled crazy. Today I smoked an L of sherm between four dudes... i was pretty high, then we smoked like four bags of weed and called it a nihgt. my question is... will this shit perma fry my brain? I'm really intelligent and only twenty... I need all my neurons, is this a safe recreational substance which I can uuse in extreme moderation and care?