loaded up with dailies and went to the guy on the dock to swap for real
a bit short of space and had 30 trout to swap so swapped 1 and dragged it to a sack
looked at my trout stack and still had 30 smuggled
i only need exactly 30 trout so swapped 29
got 29 in my sack and 3 smuggled trout left in stack
similar thing happened with cherries and grapes and was left with 1 of each
i know i had exactly the right amount when i started
nice little bug that i don't mind if you don't fix 