Of course it is stupid to talk about tempting fate. You almost never remember those occasions when you tempt fate and it remains untempted. That said I wrote about the efficiency of my old boiler (not the wife; how dare you) and the next day - the next day - it packed up. I now have a piece of paper with 'gas help' written on it which, with a slight stretch of the imagination leads me to consider holding the cleaning lady with her head in the oven.
I know, my oven is electric and I have no cleaning lady but it was worth it for the gag.