the dye

so, i consider myself an observant person. my current store is 10 aisles wide, 2 deep. not very much area to cover. each aisle is probably less than 30 feet long. so how, given the parameters, do i miss someone dying their hair in my store?
i was working on a saturday night. i made my way over to the second to last aisle, straightening and pulling old sale signs. i noticed behind some hair color a ripped open package. damn, again? yup, someone stole some 5-hour energy drink again. (this is a very common thing...you'd think i'd be able to tell the customers that are all jacked up on this crap) so as i go to straighten the other boxes of hair color, one looks a bit off. sure enough, i take it off the shelf to find the top ripped off and dye all over the box. inside, the gloves are obviously used, the dye tube is missing and the applicator is covered in dye! seriously? how the hell did this happen? listen, i'm used to the typical shoplifting...candy, energy drinks, makeup and condoms. but how the hell did this happen? now, the logical side of me says that someone had to have brought this box back, right? shoved it on the shelf, maybe grabbed another? but why? i just have this visual of someone dying their hair "cinnaberry" in the middle of aisle 12.