It's easier and more common for everyone on nightshift to take their lunch at the same time rather than having scheduled lunch breaks. During the day I select my own lunchbreak times because I work in electronics.
The problem is during nightshift only like 2 or 3 people are left behind to take the 3am lunch and that's 3 whole people covering a SUPER center walmart at night. A store that feels understaffed even when 300+ people are there.
They don't close the store either during lunch time. So 2am is where all the high theft and loving around happens.