I had this time and time again, myself.
Eventually I realised that saying I went to school at Winchester, which, whilst entirely correct, suggested that I went to Winchester College (I didn't: there was no way on God's earth I was going to go there, as my father was a don there). This ended the discussion on most occasions leaving me free to continue my sad little life unencumbered by a pointless discussion.
( Monty Boyce, My cheese game is strong, Tue 6 Apr 2010, 13:55, 1 reply)

One of them did try to tell me that the flappy hair suggested a public school education
Naturally I found this deeply offensive. I think in the end I just got used to answering their question with "Teddington."
"Oh, I don't think I've heard of that one. Rah."
"You won't have. It's a state comp just up the river from Kingston Bridge."
Usually good for killing that conversation dead in the water.
(LongJohnBaldry, Tue 6 Apr 2010, 17:43, closed)

"deeply offensive"
really!?
( Ring Of Fire A petty, drooling belming butthurt retard., Tue 6 Apr 2010, 22:07, closed)

Sorry, bit of an /offtopic in-joke that one
Monty and I take our beautiful flappy hair very seriously.

VERY seriously.
(LongJohnBaldry, Wed 7 Apr 2010, 11:14, closed)