Well that’s what happened to one unfortunate Irish Rugby fan before the vital clash with France.
Ian Browne most have been kicking himself when he realised he had lost his tickets for the game in the fan zone, but thankfully there were a few kind souls happy to help out.
John Cullinan and his girlfriend Rachel Kelly from Limerick were shocked when they stumbled across the three tickets on the ground.
After realising there was no official lost and found in the fan zone, John told thethat Rachel had the great idea to use one of the DHL signs to alert Ian and his family that they had found the tickets.
When John and Rachel returned to the spot where they had found the tickets they were greeted by a delighted Ian who had been searching for the tickets with his wife and brother.
Ian, from Ireland but living in London, had travelled up to Cardiff for the game.
"He was delighted with us," John said. "He made sure we were well repaid with a few pints before the match."
Since returning from the game, John said he has got a phone call from DHL, who are trying to sort him out with tickets for the quarter final.
Well we certainly think John’s good turn deserves another!