ooo, a bamboo! hope you have a lot of fun with it

btw, i always get confused when you put a lot of "?" in a row, i always read lots of "?" in a row as a didn't-you-realise-this-was-like-that-you-silly-person, but someone else once used lots of ? in a row on a non-question (also an old aussie bloke like you) but didnt mean that at all.
so, if you don't mind me asking what do you mean when you put lots of "?" in a row?

i assume you mean you thought the pen is meant to change to an eraser when you flip it but it doesnt for your bamboo?