In March 2017, a Gisborne couple knew right away their ticket had won $6.5m with Powerball, yet they waited nearly two weeks to claim their prize.
Wanting to make sure they had everything sorted before claiming their winnings, the winners chose to tuck their ticket away while they worked out what they wanted to do next.
"At first I thought I would put it back in the glove box, but then thought what a bugger it would be if the car got stolen," said the winner at the time.
"So I ended up putting it in a folder where we keep all our bills – we figured that even if the house got robbed, no one is ever going to want to steal that."
The winning Silverdale ticket could also be sitting forgotten in a handbag, wallet or drawer just waiting to be retrieved.
That was the case in August 2016, when a Hamilton man took six months to find a winning Lotto ticket that turned out to be worth $333,333.
When he heard a big prize from his local store was still unclaimed, he thought he better track down his ticket.
"I knew I had bought a ticket from that store, so when I heard that no one had claimed the prize yet, I thought there was a good chance I could be the winner," he said at the time.
"I had to go and collect something from work and decided I may as well clean out my desk drawer while I was there.
"I pulled out a handful of old receipts, then I saw my Lotto wallet buried beneath all the junk. I quickly grabbed it and when I opened it up, there was my missing Lotto ticket."
Any prizes that remain unclaimed after 12 months are returned to the Prize Reserve Fund for future prizes and promotions.
Big winners can also call Lotto NZ on 0800 695 6886 for information on how to claim their prize.