French Hiker Syndrome

A Natural occurring phenomenon where a French person taking part in any semi-strenuous activity will complain within minutes of the activity's starting, often during hikes.
Known remedies include : resting, cheese, and giving up.
Not to be confused with french cries

Pierre : My legs hurt, who chose this hike ?!
Moira : I think Pierre is coming down with a case of French Hiker Syndrome again