See those scribbles at the top of my credit card receipt from a dinner?
there were more on the back (click to enlarge).
Apparently the several cubic feet of blank or scrap paper near my desk weren’t sufficient… this piece of calculus had to be done on a receipt!
Looks like a secret code!
As far as I’m concerned, it is…
Ah, I’ve come across this before, it’s a boy thing…. it’s better out than in, then you’ll have their full attention again