i have read an article about this question!
' D, h1 G& G" T- M2 u0 v( R- D公仔箱論壇A man send a carton of eggs and a hen to his own living place,: v5 O2 |& ^0 M# {) R
and he realised that the eggs arrived before the hen do!
3 Q. t- e+ k% Z: h2 N* x' YThen he claims that eggs come before hen |