my first time was with my sister and her friends i smoked 3 bowls out of a glass pipe smoked half a J and did 3 gravity bong hits, i was fine until i did the gravity bong i was coughing a lot then started to get sick i ended up throwing up on her belcony (4th story) best part the belconys sort of over lap each other in a way so it wasnt pretty for the people below us one guy came out and was yelling at us until i think a chunk hit him in the face then he went in. But if your a good friend dont get him so fucked up and so out of it he's affraid to do it again....well thats what i think