whatz his name...

last friday, i was in the bank, when someone called my name...i looked at him, it took me a while to guess who this guy was...he is a friend from my undergraduate years...so we spent some time talking and exchanging phone numbers, joking etc...both of us burst out laughing thinking of some of the things that we did in campus...and while all this are happening there was only one thing going on in my mind...what is this guy's name...i know who he is etc, what course he was doing etc but still can figure out what is his name...and i was too embarrased to ask his name...till the end i key in his number in my phone but have to put his name down...i called my roomate during those years to ask her whats his name but she didnt answer her phone...what shall i do now???