I have heard about gegemu before from friends.. They said it intoxicates but i have never tasted it.
Reading this again... Well am not that strong, i just sleep whenever i feel intoxicated by alcohol maybe thats why i don't party far away from my room.
But its more of substance abuse with the way some people take these stuffs.
These substances are deadly on their own, let alone mixing them. That is like inviting death to a party. They were actually lucky to be honest.