Helping?

Shopping run to Asda today, so tried it with their clip-on trolley for the chair, which actually worked quite well bar the fact the huge front castor on the beast keeps binding with the rear wheel on the trolley every time I change direction.

Anyway gets to access aisle (and why has that sprouted a bollard in the middle since last time? though at least it was manned this time), waits until I get up to conveyor, and heave slab of beer (20 cans) onto it as first thing

'Oh, can I help?' says gent in front noticing this.

'It's fine, I've got it' I tell him. Everything else is lightweight.

Despite this he leans across, picks the beer up and moves it two feet further forward. Then smiles at me.

'Um, it's a conveyor?'

I'm sure he thought he was helping, but really?