My family lives in a house with a huge garden, and like every year, we have to remove a massive 2-3 feet tall honeycomb from under our solar panels. We live in a society where a lot of local unregistered workers do garden work. We asked one such guy to come and remove the honey comb and give us the honey. He charged us with 350 Rs. per Kg of honey extracted and billed us for 34 kgs. It sure looked a lot. I wasn't home, my mother collected the honey in 4 different utensils. The weight did not feel suspicious to her. They even used a spring based weighing scale to measure the quantity.
I have a regular weighing scale in my room, so when I returned home, I used it to measure it and to my surprise, it was only 14 Kgs! They had tampered with the scale and we were cheated with an extra bill of 20 Kgs!

It is common in India to hire unlicensed garden laborers If it is something you can verify, ALWAYS verify. I made the mistake of not asking my mom to verify as a rule. I learned it the hard way. If you don't have a weighing scale, buy one. It isn't expensive and is very useful in general. At least in India, local workers are often the best solution due to convenience and lack of licensed laborers. Be very tough with them so they realize that cheating is not in their best interest.