My girlfriend and brother had never taken mushrooms before and I, in my arrogance, thought an experienced shroomer like myself should introduce them. We brewed up a batch of mushroom and peppermint tea(I find peppermint makes the experience easier on the stomach) using about 90-100 'Liberty Cap'(Psilocybe Semilanceata)mushrooms. I began to feel the first tingle after about 10 minutes and after 30 minutes things stepped up a gear, as usual with me,upon urination. The walls of our living room are painted bright yellow, the ambience of which caused me to believe I was in a kind of cartoon-like atmosphere with all the accompanying whoops, bells, whistles and bouncieness. I was enjoying this tremendously when I remembered my girlfriend and brother. I focused on them and found my brother was playing with the computer and had typed 'Beyond God - Bob'. For some reason this worried me. My girlfriend was in our bedroom, in bed, giggling. I don't know why but this bothered me too. I think I felt they wern't having a 'good' experience. I started to worry and fret and even when they assured me they were perfectly OK. When they asked me what was wrong the only way I could articulate my feelings on the matter was by the phrase 'Elecric =11 past Wedensday'(I still don't know what it means). Eventually I calmed down but I was uneasy for the rest of the trip. Later a friend speculated that the it was the clour yellow which turned my trip, he says he can't sit in a yellow room very long even when straight. So, recomendation; be careful of the colour of your surroundings when tripping on mushrooms.