no mistake this time but good recognition

last morning a girl aksed me in the train, whether i studied at the university of bielefeld.
yes, i did....
and whether i was haning out with a simmilar looking guy?
yes.....
then you were the two we used to called the siamese twins...
yes?
oh, am i talking too much?
no, but i left bielefeld in 2001.... strange, i never noticed i left such an impression on people.