I had an early saturday morning shoot planned with several friends that were visiting from out of town...I spent the entire day getting ready for them and made a poor time judgement on when to purchase ammunition. To get past all of the boring details of my story.......Wal-mart would not sell ammunition to me after 10pm!!! There was an employee working in the department with keys to the cabinet which houses ammunition. I asked to speak to the manager and he seemed to be almost as intelligent as the floor tile, solving nothing, but managing to tell me that the cash register would not ring them up after ten at night. I called the corporate office and got passed around from office to office until I finally got an answer. "It is up to the local store manager, they are allowed to make the decision on a store by store basis". :x I tried to speak with everyone I could, which meant one of the Waltons if I could have gotten one of them on the phone!!! It did absolutely no good...but I will no longer purchase ammunition from them, even if the price is a little cheaper.
It seems that Pseudoephedrine (decongestant) and acetone are two of the principal ingredients in making Methamphetimines ! 
I didn't find that out until about a year later. I thought they were keeping me from buying acetone and lacquer thinner together so I wouldn't make a bomb! 