i once heard of a case were the employer send an unrelated document to an employee. later on, the payment stopped and the employer claimed that they fired him

i once heard of a case were the employer send an unrelated document to an employee. later on, the payment stopped and the employer claimed that they fired him at that time. I don't recall how that case ultimately turned out, but maybe something like that? would be incredibly rare though and of dubious worth for mostly anyone