I worked at Radio Shack for a while...while the money was decent, I couldn't deal with the idiots that would come in and wonder why their new cell phone didn't work if they didn't charge the battery. Or, the halfwits who have just enough grasp of technology to be really dangerous - one man came in asking for a Region 1 DVD decoder...I told him that such devices were illegal, and we probably wouldn't stock one. He became angered when I told him that no, other RS stores probably wouldn't have one either and neither would Electronics Boutique in the mall.
I was (and still am) friends with the manager; I just didn't have the idiot tolerance needed for retail work like that. If you can do it, you're a far more patient man than I...