>>2041534
Pic related is what it should look like.
The customer guessed where the brake cable should go in, guessed wrong, and instead of googling tried to make it work somehow by threading the cable through a washer.
When the cable is fixed on the other brake arm, I guess the calipers might wiggle a bit and maybe even touch the rim if you pull really hard.
As is tradition, the customer insisted it was like that, he did nothing, and it's my fault his brakes suck.