Short Weight at Kroger

I bought a package of boneless chicken breasts from Kroger with a label weight of 4.94lb at $2.28/lb, or $11.26 total. When I got home, I weight the package, which includes the packaging and diaper, and it weight 3.84lb, more than a pound under weight including the packaging. I took it back for a refund and this is where it gets interesting. The service manager, who was very nice to me, said that she couldn't take the package back because it left the store and asked what I was willing to take to keep the package. She then offered to...