Baby on Board signs in the backs of cars. I am not going to take any more or any less care in not running into the back of a car because of one of these signs. It's a fertility boast. No one cares. The planet is not in desperate need of more people!
I once had a letter read out on Woman's Hour about these things. I didn't see them as a fertility boast, but if I drive carefully it is to save my own skin, not that of someone's issue.
I don't care to be told to back off away from their 'Preciousssss'.
Sorry* if that confirms be as a Bad Fairy.
(*actually, no - I'm not sorry.* )
My musical pet peeve is snobbery about digital pianos. There are some horrors but I'd be delighted if my pupils had a good digital piano, rather than a substandard keyboard with non-weighted keys.
Only about a quarter of my pupils have real pianos, and some of those may well be dodgy.