The bird poop sent her over the edge.
She'd taken her car in for the "red carpet treatment". Inside and out would be spic and span clean, or so she thought.
Maybe it was her not noticing the umpteen signs directing her to the car wash, that she somehow missed. She drove right up to the car wash area, could not figure out how to get in, and asked one of the workers "how do I get in?". He waved his hand in the general direction she had just come in by and gave her a dirty look. Turned out, the entrance was very clearly marked with many brightly colored banners, and she'd driven right past them.
Then there was the problem with the tip. There was a HUGE barrel marked "tips" when she drove up to the belt that would pull her car through. She handed the guy what she thought would be a generous tip - ten bucks - and he seemed unimpressed.
Then there was the problem with not understanding the directions that were given to her. It took some time to get the car on the right track.
In any event when she was all done, when she'd driven away and arrived at home, she found the bird poop. It had been all over the passenger side door before she went to the car wash, it was the reason she took the car to be washed in the first place, and it was still there.
This is my entry to 
The image is mine.