Durex must have wondered. It came up with a brilliant "apology letter" ad which it put up in local newspapers:
Durex has been in the forefront of creative ads, notes Business Insider:
We're sorry our products are so good: Why Durex emerges as the King of Advertising
But Durex has also bungled. It had to issue a real apology to the Thais last year:
Durex says sorry for Thai Facebook ad that suggests some women who resist eventually give in
So there's the rub(ber). Get it right, and it lubricates the public's sense of humour. In pushing the point, just don't touch any sensitive or sore nerve. Safe sex, and safe ad!