And at this rate, for ever:
Since the 1200s, South Shields has the right to block rival markets being run less than a day's donkey ride, or six and two-thirds of a mile, away.
North Shields, on the opposite side of the River Tyne, wants its own market, but is blocked by the ancient charter.
"We have been trying for a number of years to get around this, but every time we have approached South Tyneside Council, they say they were given a market charter some time in the 1200 region by King John, so that no one can set up a market within a day's donkey ride."
A spokeswoman for South Tyneside Council said that the ancient six and two-thirds mile exclusion zone referred to the distance a trader was deemed to be able to travel from home, sell for eight hours, then return in a single day.
She added: "South Shields market is [...] of great importance to South Tyneside and, as its owner, the council has a duty to protect it from rivals."