I suppose a bit like us accidentaly putting a finger through the toilet paper
I can't recall that ever happening to me, thank goodness!
But I suppose pooey feet wouldn't suit the average cat (certainly not if they're going to be walking on *my* carpet and shoving those feet in *my* face!!!)
Susanne, my Taiki (boy kitten, the black fella in the pic) does the same as your Jaffa - minimum fuss, he's in and out within seconds.
What does irritate me is the fact that I can't go longer than 5 minutes with a clean tray. I like things to be clean and I like them to *stay* clean for as long as possible, but these two seem intent on plastering their lovely scents all over it as soon as I have it smelling fresh again!