I used to work on a deli. Someone ordered an eighth pound of meat (which is like nothing and nobody ever did this). My coworker asked me if that meant .8 on the scale.
That was another point of frustration. People would think if they asked for a half pound and the scale reads .6 they get a deal, but in reality it's just printing a label that says my pounds and they gotta pay accordingly. Some customers would accuse you of ripping them off if they asked for a specific amount and got that amount exactly.
Beats me. It's not like we were taking money at the deli counter either. Also the labels say how much weight there is, price per pound, and the total price. Just like meat from the meat department would. But I guess because they're asking for it in person they think it works differently.