I'm also a once a month bloke. (Has this something to do with lunar cycles??)
Truth is, less mystically, that only once a month on average can I escape the gaze of Auntie and on average I can only cover my financial tracks for a £200 punt (2 hours of course) once a month. There's 'bunching' when Auntie is away but that's in itself not always a good idea given my age and ability to be a decent fuck partner, cause I do still aspire to giving a bit of satisfaction.
Uncle Pokey