Tweety bird's grandma

I bond with some of our customers over the weirdest shit. I think it might be because I show them a level of respect/decency they don't often encounter.
Peggy fucking rules. She's a sweet lady in her late 50s early 60s. She really sounds like Tweety Bird's grandma. But she has quite a quick temper. She has lashed out at me one time, and one time only, when she was a little flustered and trying to use the atm, I was whistling along to something overbearing like Jethro Tull. She snapped at me to stop whistling, but made sure to say please, so I totally obliged. I try to be very conscious of our more unique customer's quirks.
Peggy does not like when people try to do things for her. I'm fairly certain she has MS, so she walks with a cane and loses her footing often. If someone tries to hold the door open she'll just stare at them and wait for them to walk away. But really, she's a nice lady.
She comes in and complains about her hair getting in her mouth whenever it's windy (which is like all the time on our street). I think that's how we started bonding. She would come in and talk to me about needing to get her hair cut, or how she needs to keep it under her hat so she doesn't eat it all the time, I one time told her i know how she feels and she's been great to me ever since.
On some level I think she has some sort of idea in her head that I'm like a son to her. I love it. We have fun. She loves to pretend she's going to throw canned goods and 6 packs up to me at the register, I play along. Last week she tried to float a bag of Lay's BBQ chips up to me, she smashed them into the ceiling, it was awesome.
The qualities people show you when you treat them like a human are astounding. I'm glad I've befriended Peggy, she's a lot of fun to deal with. I will never whistle Thick As A Brick around her again. I like her too much.
Sometimes we talk about her exploits as a child. She tells me about Randy, that bastard, who taught her how to be tough. She's told me about her girlfriends in high school she would try to smoke pot with, it made her too goofy. I encourage her to try getting high to help her with MS, some day I'm going to go to her apartment and get her stoned. I think it would improve her life tenfold.