I worked at the card factory for a few months over the Christmas period. It was good in terms of how easy it was, it's not brain surgery. I didn't dread going in, everyone got on well and the customers were fine.
The only bad parts were the management and the pay. The management was awful because the manager and assistant manager would always go out for a cigarette, 3 or 4 times during my shift and for about 15/20 minutes at a time. I was left in charge of the shop all on my own, and if a customer needed a refund or to speak to a manager I'd have to make them wait 20 minutes for the manager to come back from their cigarette to sort it.
At the end of each shift you had to sweep the floors and tidy the cards, which you didn't get paid for. If the tills were wrong when the managers were cashing up then you'd have to stay even longer. My shifts ended at 8pm and I always ended up leaving at 9/9:30pm and never got paid the extra hour/hour and a half. The pay was really low for minimum wage and my age.
A lot of unpaid hours, bad management