I rented a movie from a Redbox kiosk located at a local King Soopers (Kroger) store and was appalled when I opened the case to discover extremely graphic and vulgar markings inside, likely from the last renter. Had my 13 YO daughter opened the case I would have been filing a lawsuit against both Redbox and Kroger. Unlike Netflix, Redbox has no means to prevent this and many other problems e.g. scratched or smudged DVDs (which happen often). I am going to personally pressure my local store to remove this kiosk.
(Note: I did take photo but am not at my home computer)