£10 Biscuit Tins

There once was a man named Jim,

Who sold biscuits at £10 a tin.

A man named Bob started a company,

Which sold biscuits for £9.50.

Jim lowered his prices to £9,

And Bob went down to £8.

Jim made the tins cheap,

And put them at £7 each.

This price war went on,

For a few years long;

Until Jim made the price £2, in a blunder,

Which caused his company to go under.

With Jim dealt with, Bob put his prices up to £10.