I generally make a it habit to call HF before visiting them in August, since, at least in the past, they've typically been closed for several weeks during that month for vacation.
"The fork with two prongs is in use in northern Europe. In England, they’re armed with a steel trident, a fork with three prongs. In France we have a fork with four prongs; it’s the height of civilization." Eugene Briffault (1846)