Dublin motorists have to put up with boring run of the mill irritations caused by traffic jams, roadworks and lorries. But in Wales they have a better class of traffic jam. Motorists there were diverted earlier this week around a giant Welsh rarebit, when melted cheese oozed onto the road from a burning lorry.

Police closed the A483 near Llandovery, west Wales, for several hours while council workmen shovelled part of a 20 tonne cargo of Red Leicester and Scottish Mature Cheddar into skips. Lorry driver Paul Davies was on his way from Oswestry, Shropshire, to a food factory in Carmarthen when his vehicle caught fire. He escaped unhurt but the £35,000 trailer unit was wrecked in the blaze.

A Dyfed-Powys police spokesman said: "It was a sticky situation. Fortunately the lorry driver was very prompt in alerting emergency services to the problem." The Margin would love to hear what the AA sky-patrol would make of it.