So, I was looking at the underside of my F800GS during my first oil change and happened to see this hose sticking out, somewhere between the cat and around the place where the center stand attaches. I am usually wary of objects pointing out, but the end looks cut sharp and shouldn't be something that snapped. I am assuming it has been always that way and that this is some sort of a breather pipe. I don't see any flashing light on the dash, and no cause of alarm generally on the bike. But still, is this normal; do you folks have it on your bikes as well?