I took your question seriously.
A screening authority shall not permit a person to pass beyond a screening checkpoint while they're in possession of more than two items of carry-on baggage. In applying this provision, the items set out in part 1 of schedule 5 shall be counted, and those set out in part 2 of that schedule shall not be counted.
I won't bore you with the two schedules, but schedule 1 is basically about your carry-on baggage: your computer case, your fold-over bag, and so on. If you have three items that look like that, you will be stopped.
The other list is for purses. The purse has to be 11 inches by 12 inches by two inches. You're allowed to take two items plus a purse, or two items plus your coat, or two items plus other things. I think you were saying that it was interpreted slightly differently at another location, and that's entirely possible, because you can see that, depending on the size--