good point mate, i had the same happen to me i had to say isnt the pie and a bottle of carlsberg a fiver.
Another point as well bout the staff, against leicester i sat in the holte lower L3 normally sit in l6 so i went to get something to eat from the catering point at the l3 end far end infact not the baguette de la monde but the one on the end. Anyway i brought a burger which was £2.50 i think and gave the girl a £10 note, now my maths isnt the greatest but when she gave me £4.70 change i knew something werent right i told her that i thought she had short changed me she just said no £2.50 for burger = £4.70 change i couldnt be arsed to argue to be fair but i just thought the staff would have better math skills to be honest. But after it occured to me that the bloke in front who was in front of me wanted some chips and they had ran out so he werent happy he then said i'll have a pie then when she told him the price he didnt have enough for it so he slammed it down and stormed off, wot must of happened is that she had already but the pie through on the till then charged the burger on top of that which is why i got the £4.70 a change.
The point is that as a season ticket of 14 seasons on the trot it didnt feel too good to be made to look dumb in front of people by a member of the catering team when i kinda knew i was right.