Washing machine

Why does my washing machine insist on winding me up? It says there’s 3 minutes left so I think I may as well potter about the kitchen and wait. I watch it go 3, 2 and 1 and then it goes back up to 4. Yes, 4.

Does it exist in some bizarre space-time continuum? Is my washing machine simply too stupid to count? Or is it just (as I suspect) taking the pee?