I suppose you can choose not to donate, but remember...
The next time the auntie puts chilli in your noodles when you
don't eat chilli,
it's because you didn't donate.
The next time you miss your bus,
it's because you didn't donate.
The next time you realize you're out of toilet paper only when
you're done with the job,
it's because you didn't donate.
I dun find any link leh. 
But i not so paiseh, of course will donate. 
