In line to check out at Walmart today. I had a couple of shoppers ahead of me.
The first shopper was at the register paying. She had just swiped her card in the machine when her cell phone goes off. She proceeds to take out the phone and answer the call. She stops paying attention to everything else around her. She is just chatting away, standing there at the register.
After a few seconds, the cashier tries to get her attention because she still needs to complete the transaction on the swipe machine (sign it or put in a pin). The woman ignores the cashier completely and keeps on chatting. This goes on for about a minute and the woman is showing no signs of movement or doing anything other than chatting on her phone. The cashier tries a few times to get her attention, but has no luck.
The guy behind her finally taps her on the shoulder and asks her when she expects to be done with her call. She gets huffy and says something like "Can't you see I'm on the phone?" That at least prompts her to say good bye to the person on the phone with a comment about rude people. She gets off the phone.
After finally completing her transaction, she proceeds to stand there, putting her phone away, situating her money, getting her keys, closing her purse, making sure her bags were packed properly. She is doing it as slowly as possible. Finally, she gets everything situated and walks off as slowly as possible. Once she is clear of the register, she takes off at a brisk pace towards the door.
I do not know the woman and I am going only on what I observed and heard. From what I could tell, her actions after getting off the phone was her P/A way of getting back at the guy who asked her how much longer her call would be.