Only closed to bicycles if they're over 40 ft long.

I've seen a T-shirt with the text "La vie, c'est une plage". That also only works if you're bilingual.

When nutitionists talk about calories (sometime written as capital-C Calories), they're referring to kilocalories.

2000 food Calories = 2000 kcal ≈ 8000 kJ.