There was once a thread on here where a woman had been in a supermarket, there was a new mum in the shop who's baby was crying.
The op of the thread asked the mum if she wanted her to hold the baby while she shopped, new mum declined, and then her mother appeared and they sorted the baby out and carried on.
The op literally stalked this poor woman around the shop, talked to some of the people who worked in the supermarket because the baby was crying on and off and then posted on MN about it pretty much as soon as she got home.
When I say the op and a certain amount of posters were all winding each other up, I mean it was beyond the point of normal behaviour.
In the end the op decided that she was going to call the supermarket, get CCTV footage if the carpark, get the licence plate number, then see who the woman was and report her to SS as she woukd never forgive herself if something happened and she could have PND.
There was literally no more to the story.
New mum in supermarket, declines letting a stranger carry her baby round, baby gets a bit fussy while shopping and was dealt with by new mum and granny.
It was the most batshit crazy thread/advice I've ever seen on here.