unless repeated multiple times :)
I forget what it was I had on top of my Forester recently but it was still there when I was a couple of kilometres down the road (pretty sure that was an orienteering top).
Also had a cat collar on top of my car that fell off and got collared (hyuk) by the rear wiper.
Did you accidentally leave the collar on the roof while you were strapping the cat into the kitty seat?
One WA orienteering couple lost their SI sticks and compass for the roof holder
Jenny he managed to extricate himself from it while on my roof one day. I noticed it missing from him and found it attached to the rear windscreen wiper when I arrived, funnily enough, at an orienteering event a few days later.
But Richard it wasn't a Forester - so what you'd expect from an X-Trail.
I lost my mapboard from the roof of my forester:(