If you've had a serious reaction to a bee sting but did not seek emergency treatment, consult your doctor.

CNN: Bee stings

The commercial breached the advertising code of practice because it caused distress to "a significant number" of viewers who had experienced a bee sting allergy, the ASA found.

BBC: A scene from the advert

He happened to be at a golf tournament in New Orleans and then he felt a sting on his right arm, you know, looked down, thought, oh, gosh, is this a bee sting?

NPR: Auctioning a Nude Pic of France's First Lady

On Friday, the three-time heavyweight champion, whose name became synonymous with the phrases "float like a butterfly, sting like a bee" and "I am the Greatest, " made another memorable appearance late Friday during a spectacular opening ceremony ushering in the 2012 Summer Olympic Games in London.

CNN: STORY HIGHLIGHTS