What kind of people is this?!

Tough day I ever have. =.=
My mood went down early in the morning!
That customer damn annoying!
She bought bread and some stuff here.
Total cost her around RM2.70

Me : May I have 0.70 sen from you? Because we are out of coins.
Auntie : Can't you see I don't have it??
Me : ......
Auntie : Are you blind? Can't you see by your eyes? Then what the use you have an eyes?!
Me : ......

I really couldn't take it!
What kind of people is this?! ><