more and more kiasu ppl

i had an extremely annoying experience while at tesco the other day.
after done with scanning, the cashier asked for a bonuslink card and i said i dont have any.
earlier, ive noticed this one couple behind me kept staring at what i was buying.
'annoying gila'.
when i thot i could immediately pay, the couple asked whether can they accumulate on my behalf. the question was annoying enuf and it didnt help that they asked the cashier istead of me. i gave them a killer look. the cashier didnt say anything but i gave a reluctant yes. thousand excuses for me not to say yes but it's unprintable.
'kang kena ISA plak'.
is it a habit nowadays to ask for other ppls' points?
and to make matters worse, the newly-recruit packer didnt do a good job on packing. ie, food mixed with detergent in one plastic bag. and he had the nerve to hand me a pack of sanitary pads that he 'forgot' to pack.
'bodoh ke apa mamat ni'.
i cant remember what i said to that boy but it was a mean statement.
after shopping, i cooled down myself with a glass of teh tarik.