When David Moyes walked in for Friday's press conference, he was holding an umbrella.
'I'm not going to keep the brolly up in here, that's for sure,' said the West Ham manager.
Moyes does not want to do anything to bring bad luck upon his side as they face yet another crunch match at the London Stadium.
After recently beating Everton 2-0 and Nottingham Forest 4-0 - both described as 'must-wins' - Southampton now represent the ultimate test.
The Saints, who have played under three managers in Ralph Hasenhuttl, Nathan Jones and Ruben Selles this season, are bottom of the Premier League but can leap over West Ham with a win.