Have you ever been to a Walmart between the hours of 11 in the evening and 6 in the morning?
I went early this morning to get some medicine, actually! You're right, there are some strange people/things going on at Walmart in the early morning hours. Have you ever visited "People of Walmart"? (Website).
Some people early in the mornings do strange things at Walmart...
We've went to one at like 4 AM to buy some honey and some kind of kids' cereal for a Swim Meet. We visited Starbucks too - a visit rarely made by the likes of me.