Where should the type information be 199

A few years back there was a popular scheme involving gasoline pumps, mostly at no-name "shop and go" stations. Some custom logic was installed in the metering counters. The idea was that the state regulators would periodically measure a couple standard volumes from the pump, say five and ten gallons, and compare them to the meter reading.

The scam was that the metering rate would change so that it was fast right up to near those two marks, then suddenly slowed so that if you bought exactly five or ten gallons, you got the right amount, but if you bought less, you got shorted. Of course if you bought more than ten you also got shorted, usually around 10-15% so it usually wasn't enough for the customer to notice since they don't know exactly how much is in the tank to start with or the exact volume when full in most cases.

Took the regulators a long time to catch on.

Considering sales volume, even a modest shortage would take in a very large profit.

Nowadays, most people don't bother to check the prices that checkout scanners charge. Many merchants routinely overcharge by small amounts on random items. Since posted prices are often missing or inaccurate anyway, most people don't bother to challenge them.

It's really no different than the days of merchants rigging the scales, using a shorter "yardstick," etc.