The Leap Day alone overcorrects the calendar, requiring we remove a Leap Day every century year.
But that under-corrects the calendar, requiring we put a Leap Day back in, every four centuries.
Behold the Gregorian Calendar.
Hi David! You seem to be struggling to make your fictional European friend sound authentic. Try something a *real* European might say, like 'we don't have armed school guards,' 'we don't sell kids assault rifles' or, more simply, 'don't use me to argue for more guns, Dave.'