This customer was very picky about how she had her groceries bagged, paper in plastic only, and things had to be bagged in a very specific way (i.e., the spice packets must be placed beneath the chips, bread must be set in the bag horizontally regardless of how many bags it took, etc). I remember her yelling at me that I was doing it all wrong. I was new at the time, so I just kind of stood there awkwardly as this elderly lady yelled at me over whole wheat bread being placed wrong.