For the first time, I used the "Self Bag Drop" at T5 when travelling with the family. Three of us. Two previously stated at check in as having a bag. Picked up boarding passes first at the separate PYOBP machine, entered my booking details, all three BPs came out together. Then on to the bag drop.
Entered my BP for recognition, it says "Load heaviest bag first". So I do, and process that. It then says "Is there another bag ?". Answered "Yes".
Immediately it displayed "Pay £65", and lit up the credit card reader. Thought about it, it evidently can only work with one BP at a time, and doesn't do groups on a reservation at all.
Now I can only think that either the programming of these was done by interns who had just completed unit 1.01 of their IT course at the local Tech, or alternatively someone is hoping for the Alex Cruz "Employee of the month award for the most sneaky way to stiff our less-informed customers". I wonder which it is ?