Into the gloopy quicksand

The problem with National is that they only have other people’s slogans

Item One

Here's something my erstwhile fellow blogger Emma Hart wrote today that I've remade into a riddle:

There's a bunch of jobs in this country that require tertiary qualifications and pay only just over minimum wage. What do they all have in common?

Ten points and a chocolate fish to everyone who correctly guessed right away:

They're all mostly worked…