Our Tesco delivery people are lovely - always cheerful despite driving down a bumpy farm road and often whizzing straight past us because the next house, half a mile away, has the same postcode. 
They laugh because our cat adores tinned tuna and dances around the kitchen purring loudly when I say, 'All hail, the bringer of tuna!' They have to watch out she doesn't trip them up.
I've never really given much thought to the 'pickers' who load the delivery crates in the supermarket. Last week, however, I was tapped on the shoulder by a smart young woman in uniform pushing a trolley laden with crates, scanner in hand. I didn't recognise her at first but then realised she was an old school friend of one of the DGSs.
I assumed it was a thankless task but she said it's fun imagining what she'd do with all the items she would never normally buy. She's off to uni in September and reckons she'll be the fount of all knowledge where bargains are concerned. 