mean customers

i hate it when im at work and a customer will come to my register and have a b*tch fit about something that i cant do anything about.

i used to work at babies r us and OMG the worse customers i have ever experianced went to that store. and i cant even use the excuse that my customers are pregnant woman with hormone problems, because it wasnt always the pregnant women that were the evil ones. it was the old women!!!!!  for instints, i had a customer that came to my register. she wanted to return a baby stroller. so i told the woman in a very friendly and polite way that i am unable to return her her money because i cant do returns, i am a cashier, she must go to the return desk. and she blew up at me. she said the line was too long and she didnt want to wait. i leaned over and looked at the line beind her and notised i was the only person on register and there were already 4 people in line behind her waiting to be rung up. so i told her that if there was nobody in line i would have walked over to the returns desk and done it for her but not only would that have gottin me in trouble (because i was unformiliar with the return proceedures) but also because i am the only person on register and i CAN NOT leave my register unattended unless i can find some1 to cover 4 me and at this time there was no one. so i politly told the lady again that there is nothing i can do and she must either wait in the returns line or come back another day. she had a whole fit. and i will quote what she said "u should do it, im not waiting in that line, i have a doctors appointment in 20 minutes. if u dont, i will speak to ur manager and make sure u get fired. ur so lazzy." when she said that i just wanted to cuss that old lady out but i had to keep myself together. so i paged a supervisor for assistance. the suporvizor came and spoke with the lady, and she ended up telling the lady they same exact thing i told her, that there is nothing i can do, and she must wait in that line, but seeing that my suporiser hates to see customers unpleased, she did the return for her quickly on a free register at the returns desk. the whole time he was doing the return for the old lady, she was bitching about how horrible i was, how rude and mean i was to her. how i should be fire. to be honest.....why do customers like this have to come and make my job so much more difficult?? remember people, cashiers only make minimum wage, give them a brake, they dont make enough money to deal with the ignorance OK take a chill pill. i felt like askin that lady where she worked so i can go to her job n bitch her out n try to get her fired! OMG so frusterating!!!!!