I started my morning with this delightful conversation before I could even answer the email the client had sent about it 20 minutes prior. For background, we were replacing mirrors in a hotel: we reduced the number of different sized mirrors from 13 to 3 in order to, ironically, avoid confusion:
Me: Good morning, Client, how are you?
Client: Confused. I have 12 mirrors of type 1, 4 of type 2, too many of type 3, but none of type 3 when I should have 28.and I should have 28.
Me: I understand your confusion. Per the plans we sent yesterday, we are only using Types 1-3. Type 4 was consolidated in with 3, which is why you have extra.
Client: You don't understand, type 4 is listed on this order.
Me: (panicking slightly) You should not have any of that. Are you saying you have four mirror sizes?
Client: No, I have three.
Me: Alright, that makes this easy: all rooms get type 3 except for the ones that get type 1 or 2. There are only 14 of these in total - just refer to the floor plan.
Client: I don't know why you didn't just send me a list of rooms saying which mirrors go in which room!
Aaaaand, we get to the heart of the matter: client just didn't want to have to read the 16 room numbers that are different and wished we'd broken down all 450 rooms individually.