reality is you can't be kind all the time because so many people will take advantage of you. thats no shit either. Be it your neighbor, relative or a company/corportation.
Just think how many times we get screwed over by utility companies, product manufacturers or even fast food chains...you were kind enough to pay, patient enough to wait so long in line and even keep comming back...and how do they repay you when something gets screwed up or someone made a mistake
I became bitter in my 20's. I became an asshole when i need to be, a hardass when i need to be and only nice once niceness is given, proved or otherwise respected from me beforehand.
So i'll help a coworker who i respect..etc. but the line is not drawn far away to a point where i'll tell them to do their own job or GTFO!...same goes for relatives..etc.