Customer came in with a 24" wheeled kids bike and asked us how much it would cost to "make is so he can ride to school" Started checking:
Brake blocks worn down, cables stretched
Rear brake, boss screw on one side of V-Brakes missing, but as the boss was also missing, that wasn't so serious,
Real wheel loose
Rear-wheel bearings loose
Tyres more cracked than a mudhole in a drought.
Front mudguard rusted through
Chain had never seen oil, and worn down
Lights missing.
There may have been more, but I stopped there, as repairing that much would cost over 200€.
Next question:
"What if we do the minimum to make it safe?"
Told them that would cost at least 100€ with parts & labour.
They were disappointed, but at least not unpleasant about it.