Brandon's cute aunt wanted to collect a photo of each member of the family. I have tried to do this sort of thing in the past although it seems like the easiest of tasks, it can kind of turn into a nightmare. (See Mother's Day Photos for the last 7 years).
This one went amazingly smoothly and he got pretty good shots of everyone on the first try.
It isn't necessarily that she is always mad, because she is pretty delightful most of the time. It is more a reflection of how she responds to being asked to do something that she doesn't want to. At that point it doesn't matter how many times you try to take the photo, her stubbornness will will.