Isn’t it a cliche about tradespersons homes being the worst places to see evidence of their skill? Electricians and plumbers are known for having death-trap exposed wires and dogdy pipes as much as they are for being tapped up by bored housewives when they’re on the job? Presume something similar holds for most trades in this respect; maybe bakers make crap bread at home, or just buy it from the supermarket. Bus drivers drive badly in their own cars. My dad took years to get a fence put around the back garden, whilst my mum always you to be far more slapdash when doing my hair than her customers. She also used to give me a clip round the ear if I didn’t keep my head still which was simply because she could, whereas the little darlings in her shop got a sweet smile for annoying behaviour.