Two affiliated branches of the Lever soap company sued the US for failing to prevent the soap made in the UK from getting into the US. Apparently the soap was made slightly differently in the UK as it was in the US: the UK brand didn't lather as well.
The court explained:
"The manufacturing choice evidently arises in part out of the British preference for baths, which permit time for lather to develop, as opposed to a US preference for showers."
Lever Bros. Co. v. U.S., 877 F2d 101 (1989).
Is that true??