Friday the 13th, Pi Day the 14th & Beware the Ides of March
But first, if you are superstitious then be wary since it is Friday the 13th. If you know anything about numbers, and you live in the US, then you can be irrational on Saturday which is Pi Day.
This pi day stuff works only in the US convention of writing mm/dd/yy for dates.
But whatever you do, beware the Ides of March.