Vanishing spray made its debut in the Premier League this weekend to much praise.
Except at the Emirates Stadium.
Referee Jonathan Moss, using the can for the first time in the game between Arsenal and Palace struggled to get the spray to work.
As he lifted the can to test if it was working a gust of wind took the spray straight into the eyes of Arsenal midfielder Santi Cazorla.
Arsenal may have been 1-0 down at the time after Brede Hangeland's header, but the incident delighted thousands inside the stadium, as cheers went up around north London.
Cazorla wasn't recovered and eventually delivered the free-kick from which Laurent Koscielny equalised.