i guess pretty much all of us have been there done that. my first semester, i was living with a bunch of nepali guys .. goddang they were so cheap... they would not forget a dollar they spent on you. my second day in the U.S . i went to mcdonals with a senior nepali guy . i was a dollar short coz i had very less cash , most of my money was in the bank. so the guy paid a dollar out of his pocket. 4 months after that , one day he asked me to get a drink from the vending machine coz i owed him a dollar. i changed my dorm, got a room for myself. i paid the guy 5 bucks. As shameless as he was , he took it . So, brother you gotta know what kind of people to avoid. Look out for yourself, This is how you learn to deal situations like this in life.
p.s
tthis is just one of my experiences. i have lots of good nepali friends. i am a nepali and prould to be one