1400+ km over 28 days in non-stop rain is going to take its toll on the body. Explaining the blood stains on ones shirt in bad French to an Acadian true blood will take its toll on ones multilinguistic communication abilities.
Firstly "chafe" and "shave" sound too similar and telling a rough and rugged Canadian that you shave your nipples is just plain weird.
The hand actions at best are confusing, and at worst might have him ready to haul out the holy water in anticipation for needing to perform an exorcism.
The important thing to NOT do is panic and grasp at the first French word that springs to mind.
"Frisson" accompanied with the actions, just confirms that you are the son of Mephistopheles, when in fact the word you should be desperately clawing for is "frictionner".