She had spent $57 on five 4-D tickets and then lost them. Her attempts to find the tickets were unsuccessful.
Three of the numbers that the 50-year-old housewife had picked turned out to be winners and she would have won $5,445.
While cursing her bad luck over the loss, she also had reason to celebrate as she still ended up $5,000 richer.
All thanks to a supermarket employee who had told her to buy some of her numbers again instead of crying over spilt milk.
She took his advice and spent another $20 on a smaller set of numbers. One of the numbers, 3290, struck the second prize, winning her $5,000 in Saturday's draw.
This is what happened to the housewife on a most unusual day when she was both loser and winner.
The housewife, who declined to be named, told Chinese daily Lianhe Wanbao that she had bought the first set of tickets at around 4pm on Saturday for her husband.
When she got home, she realised that the tickets were missing. As she did not have her handbag with her, she had put the tickets into a pocket and believed that they had fallen out.
Worried that her husband would scold her, she immediately went back to the Singapore Pools outlet at an NTUC FairPrice supermarket at Block 107, Tampines Street 11 and searched for the missing tickets.
When she could not find them, she grew frantic.
A supermarket employee, who declined to be named, told Lianhe Wanbao that he saw the woman walking around anxiously at the entrance.
He went up to her to find out what was going on. He then told her that she still had time to buy the numbers again.
"I told her not to panic. If she couldn't find the tickets, then she could just buy the numbers again," he said.
He said he also advised her to make a police report about her missing tickets. It is not known if she made a report.
Unknown to her, a woman had found the tickets on the ground near Block 108 at about 5pm.