\_ In defense of the retailers, however, 

My experience with Fry's is that the wetware doorscanners can be
helpful, and are motivated to do so.  I was walking off once without a
discount/rebate coupon or something, and they marched my overpaying
butt right back to the counter and demanded I get my $ back.  Or
something.  It was a net gain in my favor though, and I think the
wetware got a kickback from Fry's too (Hence the motivation).

Although not all wetware doorscanners are likely to be created
helpful.  :-)

A BOFH would point out that it wouldn't be hard to manufacture a
receipt of sufficient detail to stun the wetware into letting you out
the door with the elephant in a shoebox, and likely stun them enough
to get them to *help* you load it into your vehicle.  

YMMV, IANAL.


David