Heres mine :
When i first started my fb profile back in 06, for like the first couple of months I didnt check it much, however there was a big dent in my details, one that was so embarrassing it was almost life changing!
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I had checked Male instead of Female in the 'interested in' option!!!!
Needless to say, one of my female friends kept acting funny around me, until she came straight up to me and was like: Are you gay!? It was probably the shock of my lifeee. So for the next couple of months I turned my fb profile into a shrine for women, joined every single anti-gay group there is and wrote a note about the whole thing. Thank god not many people were on fb back then!