My dad interviewed with them for a management position once, when he was desperate for work, and got a speech about "you have to work X number of hours and you can't have these days off and blah blah blah and you have to work real hard and I'll see if in a couple of years you are doing good I might be able to get you promoted so you can run your own ripoff Shack"
He was a radar tech in the A.F. has a degree in physics and has run more than one manufacturing plant and some guy with acne problems and has to date his left hand on weekends was giving him a speech about "see above". I thought it was funny then but now that I have a couple of years under my belt I get the feeling he had a lot of self control not to put the kid over his knee and spank him.
Actually, last I heard, the positions at Radioshack are retail sales positions - just because you can build a TV/cell-phone/dvd-player doesn't mean you can sell one! Not to mention salesmen/women with _too_much_ knowledge probably just confuse the customers! (I'm sure this is why they want to check people out first, before handing them the keys to a store)