This is the commercial:
The negative reaction is reported here as follows:
A list released by the Advertising Standards Bureau found the hotly debated Kotex U tampon ad showing a woman going about daily activities with a beaver in tow was the most complained about ad in 2008.
The ad, which received more than 185 complaints, tells its audience, “You only have one of them, so look after it” and featured the animal which viewers understood to be a reference to female genitalia. …
Could it be the annoying soundtrack?