in-depth socio-cultural analysis is required of what large lorries do and say when backing up viz:
i. beeping (common) (as muck)
ii. “ATTENTION! This VE-HICLE is reVARSING!” (i hear this most weeks in hackney, but have not yet seen the lorry in question — the accent is not-quite posh but the delivery is, in a sort of male jolly-hockey-sticks YOU MUST DO THIS NOW but IT’S ALL A BIT OF FUN type way)
iii. other (er = plz do my homework for me ok thx bye)