When will it expired?

My wallet looks so thick, no, not because there's a lot of money inside, there's a lot of papers inside. Papers? Ya, atm transaction slips lar, credit card slips lar, receipts, vouchers, all these are making my wallet thick!

While i was clearing out these rubbish, i saw a voucher. This Red Box voucher was given to me when I went to sing K last month.

A RM 10 voucher from Red Box.
What's so special about this voucher?
wait wait wait, let's turn around and see..

can see what's so special?
it's valid till 31 Nov 2007!!!!
I didn't know there's 31st for this month.
hahahahaha, does that means it will never expired??
:p