Arguments over late or non-payment can be thorny issues at the best of times, but this story on the BBC website shows what can happen when they turn nasty.
When one Derbyshire homeowner refused to pay the builder he had contracted to construct his extension because of alleged unsatisfactory workmanship, the disgruntled vendor decided to take matters into his own hands.
Having climbed onto the roof of the property, he spent the next five hours ripping off the tiles, insulation and breaking joists he had constructed. He ended his demolition after police were called and warned he could be prosecuted.
This obviously is an extreme case, but there must be comparable situations in the business world.
What is the most radical attempt to obtain redress for late payment you have heard of?