Keeping Comedy Locked Up

On a recent visit to my local W H Smith, I decided to have a look at their selection of Audio Comedy CDs. Having not checked them out for a while I was hoping to find something new and exciting to help me while away the time spent travelling to and from work. I walked into the shop and headed down toward the area normally reserved for these wondrous items. To my dismay, I discove4red that the display unit which holds them was no longer in its usual position, and had been replaced by a slightly larger area taken up by a new e-reader, named the Nook. Aimlessly I wondered around the further reaches of the shop, and after a few minutes of frantic searching, found them nestling behind the Customer Service desk.
I wanted to ask the lady behind the counter why it was necessary to subject these items, out of all the others, to such a state of incarceration. To begin with I shied away for fear of looking like an idiot. But after a few moments I realised that if I don't ask I'll probably never find out. Surely that couldn't be the silliest question that has ever been put to an assistant of a book and stationery retailers, surely. I could think of sillier questions, for example 'Do you sell bricks?' or 'When does the next train arrive?'
Not to stray from the point too much, I did find it in me to ask the lady at the counter - 'Why are the Comedy audio CDs behind the counter?' - To which she replied 'because people keep stealing them'
This was a bit of a surprising answer considering the fact that out of all the things a potential thief could take it turned out to be the least obvious. Well to me anyway. I guess they are easy to conceal, but considering the intellectual nature of the recorded material I for one would have thought that most thieves would leave well alone. That is not to say that all thieves are stupid of course, the ones that target W H Smith and other stationers may be intelligent, and for all we know wanted something clever and/or amusing to listen to on the way to their next bank heist or whatever it may be they have lined up.
I have to say out of all the things someone could steal why comedy audio CDs? Maybe they think they’re being funny!