i think its your mindset and how u perceived ppl. frankly speaking, protray n thoughts r different.
work as a cleaner so what. i make sure that i greet the aunties in the pantry every time i c them. without them, pantry not clean. without them, office pantry would not be homely. can we do without them? no.
sales assistant. i would love to have sales assistants talking to me about their products as it save me time to try to understand them before deciding to buy them. but then, i may show a `dao` face when i am just browsing as i would not want to waste their time on me if I have no intention buying.
actually since u have so much anger, as what others say, y not translate to strength n make good money out of it while u r young. drag a few more yrs also too late for this.