All Our Mondays…..

It was one of those meandering late-night conversations.
Me: “It’s Monday tomorrow…”
B: “Yes, another Monday…”
Me: “Seen too many of those….”
But how many? I suddenly wondered. Grabbing a scrap of paper and my trusty pen, I started working it out. I’m 55 years old; 55 times 364 is 20020 days; 55 divided by 4 is 13-and-something, so add 13 days for leap years; 20033 days divided by 7 makes 2861 Mondays. Add on the 8 or so Mondays since my birthday and that makes 2869 (approx) Mondays that I’ve lived through.
I tell B this.
“Very interesting – but, um, why did you do that?”
Me: “Well – I like numbers. You know I do.”
B:”OK, clever clogs, how many weekends have you lived through?”
Me: “Half of that, of course – a weekend is two days – so it’s… “I grab the paper and squint at it. “…1434 weekends.”
B: “Oh no it’s not, it’s exactly the same number as Mondays!”
I do my impression of Homer Simpson trying to work out how many beers are in a six-pack, until B helps me out.
“Weekends only come round once a week, silly!….”
D’oh.
B:”….And you’re supposed to be the mathematical genius around here?”