And whilst we are straining our memories, does anyone else remember the ITV Public Information Film (it would appear that the actual footage is lost) that featured this poem?
Sir Isaac Newton told us why an apple falls down from the sky
And from this fact, it's very plain, all other objects do the same
A brick, a bolt, a bar, a cup, invariably fall down, not up
And every common working tool is governed by the self-same rule
So when you handle tools up there, let your watchword be "Take Care"
If at work, you drop a spanner, it travels in a downward manner
At work, a fifth of accidents or more, illustrate old Newton's law
But one thing he forgot to add, the damage won't be half as bad if you are wearing proper clothes, especially on your head and toes
These hats and shoes are there to save the wearer from an early grave
So best feet forward and take care about the kind of shoes you wear
It's better to be sure, than dead, so get a hat and keep your head
Don't think to go without is brave; the effects of gravity can be grave