In the past, in some countries, including England, it was formerly necessary to show proof of adultery to get a
divorce - “Irreconcilable Breakdown” was not enough. Professional male “correspondents” would overnight in a hotel bedroom with the woman, leaving their “Correspondent
shoes” outside the bedroom door to be cleaned. Such “correspondent
shoes” would be memorable, for example two-tone
brogues, so the hotel shoe cleaners would remember them, and be later able to testify that a man had spent the night in Room 508 with Mrs …….