Parking wardens have had their Christmas bonus axed to avoid upsetting non-Christian colleagues.
Bosses at NCP Services usually give staff a £25 Argos voucher for each year of service.
But this year the firm has decided it is “inappropriate” because some employees do not celebrate Christmas.
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NCP operates a diverse range of services, including traffic wardens, for 31 councils across Britain.
Spokesman Tim Cowen said: “We employ people from more than 100 countries and feel it is perhaps no longer appropriate just to recognise Christmas celebrations.”
He also said it could be seen as unacceptable for a transport firm to hold alcohol-fuelled parties.
Unions are furious at the move and are considering strike action.
• Original titel: Parking bosses cancel Christmas bonus for wardens… for fear of offence