<human>: Disclaimer: This happened yesterday.

So my younger sister is graduating from primary school, and the school put together an evening farewell party thing to see the year sixes and sevens off (Next year grade 7 is moving to secondary school in Queensland so there are two grades graduating).  After the official ceremonies everyone moved outside and grabbed refreshments, and i thought it'd be a good idea to get a photo of my family with my sister.
This is where the fuck-up starts.
So the area where the refreshments were laid out was very confined, and there were loads of people moving towards and away from the tables.  I'm trying to round up the rest of my family, with my fairly expensive looking journalist grade camera (this is sort of important).  I lean in towards my step father (who was standing about a metre from a group of mothers in their late thirties and early forties.
"Shall we go get a photo then?", I say.
My stepfather is a carpenter and has a bit of industrial deafness, and he doesn't here me.  In fact, three of the mothers turn towards me with a puzzled look on their faces and see me, leaning seemingly towards them, with a slightly dodgy looking smile and and an expensive looking camera around my neck.  Their puzzled look turn to ones of shock.  It dawns on me; they must think i look like some kind of creep.  The kind that goes out and spends the little money they probably have on an expensive camera so that they can take photos of random women and...well...you get the idea.  It may seem like a stretch, but if you saw their faces you'd understand.  

So i proceed to make a point of turning away from them, and tapping my stepfather on the shoulder, and repeating what I originally said.  
We get the photo taken but i spend the rest of the night worrying about whether those mothers still thought I was some kind of sexual predator.

Condense the text into a few key points
<bot>: tried to ask my stepfather to get a photo of my sister at her graduation, accidentally convince a group of mothers into thinking i was some kind of mis-guided-deviant-sexual-predator.