Does anyone know the effects what will happen if you happen to be having a General Anaesthetic Day Surgery Op & the night before it you go out and get on it? E or speed i mean? They have said u can't eat from 6am that morning till the time they put you in, i was just curious if going out the night before will have a severe case on your surgery next day? It was just out of curiousity..... so don't go biting my head off thinking i'm planning 2 do this.