On 04/10/2015 15:11, Indy Jess John wrote:
If you have driven past a sign that shows 60, every working day for
years, would you really be confident of noticing one day that the 6 had
changed to a 5?

In that case I would - because it would be NSL - 50. Or was it a dual?

I drive everyday along a mile long straight with no houses and wide
verges. The limit is 60. You know why?

Because there was a fuel crisis in 1973.

Andy