"watch out for those frenchmen, they have a snake in their pants"
Well, yes. I think it's wise to avoid people with snakes in their pants although to the best of my knowledge the French aren't any more likely to carry snakes in their pants than people of any other nationality. I would probably think the people most likely to carry reptiles in a non-traditional manner would be members of snake handling cults. I think they are mainly based in America although it's possible that they may have adherents from a number of nationalities