People raising children on video games

So you noticed how frequently I mention video games in this blog? I can't help it for the sake of the business that I work for.
I was 5 years old one christmas morning when a miracle happened; Santa gave my brother & I an Atari 2600! It was amazing, and the first video game I ever played was Pac Man (circa 1980), followed by Kaboom (play it here) and Pole Position. My brother & I had epic Combats, my father loved Kaboom, and my mother loved Tennis, which we spent 50 bucks on a year later.
How my parents ever afforded this at the time is still beyond me, but hey, if I could afford a PS3, Wii or 360 for my kids, I'd probably splurge if they weren't totally demonic & gross.
Thankfully I don't have any kids, so it's just me & this lovely Linux computer, plus a couple of lovely cats.
None of the above is relevant to the below.
One of the less intelligent teenage mothers that I've recently met walked in with a fairly new Dance Dance Revolution game for 360 (the newest one) including the dance-pad & such.
She didn't really want to get rid of it, but as she explained, her neighbours complained about all the dancing, maybe the revolution, and possibly the baby crying about all the neglect.
I said "I can give you $25 for it... or $33 store credit" (that's 30% more and not a bad deal)
She said "ok"
I said "cash or credit?"
She said "(shoulder shrug)"
I guessed "(cash)"
I gave her $25.
She neglected the baby and started looking at video games for a while, picked one, and re-approached me.
The the game was &29.99 + tax, and this is where I had to explain that you don't get cash + credit, no, you get one OR the other.
She grabbed the baby cart, swore a lot, and stormed out.
It was confirmed the following Monday, when she phoned to inquire about this, that she in fact thought that I was giving her $25 cash PLUS 33 store credit for her stupid Dance Dance game.
It was then that I offered to give her the game back providing she return the $25, but it never happened. Instead... get this, she decided to apply for a job!
She was not hired.

*update* - She never did pick it up! Also, nobody wants to buy a stupid Dance Dance Revolution video game! It's just sitting here, gathering dust.

(currently playing: Kaboom! On the internet... fuck yeah!)