They wanted the other brake fixed.
This actually makes you go faster, by whipping you as you ride.
This tire is somewhat worn.
Ok, on some bikes you can get away with this, buuuut...
Some people attach their seatbags in very unorthodox ways.
Like I was saying just now... but you have to give them credit for using the Seat Cleat to mount a taillight.
This is the most common variant of "I Did It My Way" seatbag attachment.
And some people don't clean their drivetrain very often! They probably don't even know that their cat doesn't naturally have black stripes.
Nails. They're awesome.
They can also serve as seatpost shims.