Sorry, you’ve misinterpreted (just as I may have misinterpreted the post I quoted). I wasn’t referring to *zoo* catering departments, but restaurants and catering companies in the wider economy. Such behaviour is chronic in the Australian and US hospitality industry and there’s no reason to imagine the UK industry is any different.
As Simon said, it was a cynical comment, but not about zoos at all, and I apologise for causing the confusion.
edit - and reading back, I can certainly see how that confusion was caused. I should have expressed myself more carefully.
Thank you for the explanation. There is a similar problem in the UK but it tends to be in specific areas of the hospitality industry and not the "pool" within which zoo catering operates.