or, as John Lennon once said (and indeed, sang):
"All we are saying, is give 'Pi's a chance…"
that works best in a foreign accent.
[which country/accent was it where PIe sounds like PIss ? dutch or was it one of the scandinavian ones?]
You would say [pi] like "pee" in many languages : french, spanish, italian, german, dutch… And, last but not least… greek. ^^