I was made fun of at school. I was embarassed when girls made comments, but it didn't really bother me. The worst side effect of this for me was that it took me quite a long time to realise that there was more to being good in bed than just producing the big knob.
I have caught guys looking at me with real hatred in their eyes when in communal showers.
I have had a woman tell me that my cock was just obscene, and she didn't mean it in an OMFG way. And quite recently I had a woman tell me that she thought that I should see a doctor about it
