Hygiene for the win!  Not surprised that Karn knows how to take care of his armour properly, though it isn't a quick or easy thing to make sure full plate armour is properly maintained.<br/><br/>I mentioned this because I did some LARP, where you had to actually wear armour for it to count as armour.  So leather armour had to be a certain thickness and weight to the leather, chain rings could only be so wide, and plate had to be made with 16 gauge steel or heavier.  Because of that... people could get a little funky if they went a while without showering or cleaning their armour properly.<br/><br/>Leather is especially bad for scents.  Your sweat kind of... gets into the leather and you can't just wash with water and soap to get it clean or smelling fresh.  You really got to massage the oil in.