Dateline: July 27, 2009.
[There is a man at the register who just swiped his ATM card through the reader. He is wearing a ParaUSA hat and a t-shirt that says, "There are very few personal problems that can't be solved with a suitable application of high explosives." Not seen is the STI Eagle 5.1 in a Kramer IWB holster behind his right hip loaded with 19 rounds of high performance .40 S&W hollow point ammunition. Also not seen is on the other hip is a spare loaded 18-round magazine and a Surefire 6P flashlight. There is an Asian woman behind the register who just put a 50 pound sack of Boomerite mystery ingredient #4 into a cart.]
Woman: What are you going to do with 50 pounds of <mystery ingredient>? Are you a baker?
[Man waits a few seconds for the transaction to go through and the receipt to start printing out.]
Man: No. I'm going to make explosives with it.
[Man grabs the receipt and takes control of the cart with the 50 pound sack in it.]
Woman: How do you do that?
Man: You mix it with Ammonium Nitrate, Potassium Chlorate, and Ethylene Glycol.
Woman: Why do you do that?
Man: For recreational purposes. I make about 2000 pounds of explosives each year.
Woman: What do you do with it?
Man: I put them in targets, place them from 375 to 700 yards away and people from all over the whole world come to shoot at them.
Woman: That sounds really interesting! There must be a website for this, right?
[Man breaks out into a smile.]
Man: Yup. Boomershoot.org.
[Man, pushing cart, leaves the building. No guns were brandished, no cops arrived on the scene, and no shots were fired.]
Update: I forgot about the two Spyderco knives the man was carrying.