Ask HN: Analysis of credit card receipts to show one does not buy alcohol
A small background as to why people would think I was a drunk: I have a severely autistic and developmentally disabled son who we are pretty sure also has ADHD, and I am the only person who takes care of him (now I getting governmental help to watch him, but I still often have to spend days where I watch him from 7 in the morning to 10 at night and also if he wakes in the night overexcited and wants to run around the room yelling for a few hours), so I am very tired most of the time, also I have a few medical problems brought on from overwork in this issue that makes it sometimes painful when I walk.
So I understand why someone might think I was a drunk.
Background on why this has gotten me in a fighty mood: The people who accused me are his school, who know that I am his sole caregiver out of the government provided help. This was due to an incident that happened a few weeks ago in which, if there had been traffic coming, he would have been in trouble in the streets while under my care (I can describe more of this if you want but this is a pretty long ask)
They decided to make a report saying I picked him up while drunk. The report was full of half truths, and some potential lies, as well as the insult that I was drunk. Not only that but they claimed that I had been observed drinking beer at the local train station where there is a convenience store.
When I said you're mistaken I don't drink they stuck to their guns and would not apologize on that issue. When my ex-wife said "Out of all the things that Bryan has wrong with him, drinking is not one of them" they stuck to their guns.
Things I have done so far: I have gotten a notarized doctor's statement from my doctor since 2018 as to my medical ailments that might cause one to think this guy looks drunk right now, and that he has never seen any indication of a drinking problem in my blood samples and other labwork, in conjunction with that ever statement I have ever given for a medical questionnaire since he has known me says I do not drink.
I have statements from the convenience store workers that I have never bought any alcohol from them and that what I always buy are either hot coffees or triple shot espresso cans of Starbucks. One guy thought maybe the school thought it was beer because the cans are green, but they really aren't shaped like beer cans.
statements from work acquaintances and friends over the years that I have never shown an interest in drinking.
So what I would like to do now is as I asked, do an analysis of my credit card transactions from my bank records that I do not buy alcohol, doing so for the convenience story should be relatively easy, my transactions from them can be shown to match in amount the transactions they are willing to testify I do.
But I was thinking while it cannot be seen if I buy alcohol is there anything I can do to analyze my bank records to show that purchase history is not consistent with the expected purchase history of someone with a drinking problem? Obviously I do not go to bars.
Unfortunately I do not have credit card transactions saved from shopping so I can't show I have never bought alcohol, but I can start saving this month, and that would show I do not buy currently and could be taken to show that there are no anomalies with current months.
Obviously this might seem like an overreaction, but I dislike getting accused of drunkenness, lied about, and being surveilled incompetently enough that the surveillance assumes a can of Starbucks is beer.