A pensioner aged 71 was asked to 'take off her hoody' by a security guard in an Aldi supermarket despite it being merely a headscarf (and the fact she was 71)! The store has since apologised and offered to give her some complimentary groceries.
The fact though that a security guard felt compelled to approach a pensioner and ask her to remove what he believed was a hoody underlines the connotations the hoody has and how it has become something of a symbol of some of the perceived problems with youths in Britain. Other garments have reputations too though. High-visibility jackets are synonymous with construction workers or other official roles, for example.
Are there any other garments that bring about such strong opinions?