Context - I am doing a colleague a favour by handing over an item to a friend of hers and acquaintance of mine. Acquaintance lives about 15 minute drive from me, but farther away for colleague.
3 times this week i have texted acquaintance to say I could drop the item off at hers as I would be going past. Each time she has replied to say she could not guarantee to be in. Finally on Friday she said she would pop by and pick it up from me, today. I asked her what time and the response was 'about the middle of the day'. 
Now, admittedly I get up early but I consider 'about the middle of the day' to be between say 11 am and 13.30.
I am getting more annoyed not least because she has turned her fucking phone off and I need to go to the shops which close in 20 minutes.
So, AIBU to ask what time others would consider 'about the middle of the day' to be?
(I am not going to ask AIBU to fuck off out and she can fuck right off? because demonstrably the answer would be no, IANBU).
Anyway, I AM off out now....