It is interesting how overhearing a casual conversation can inspire the lyrics for a song.

Back in 1967 sanitation engineers were brainstorming how to overcome problems with sewage systems that were affected by back pressure from rising water stemming from seawater levels changing.

As a result they organised a friendly competition to design a toilet that would be OK to nstall in these situations. Five companies submitted prototypes and it was agreed that they would be tested in turn, one each day in a particular week in the summer.

One official would be required to observe during the night during the 24 hour tests.
The official was overheard explaing on the phone to his wife that he would be working nights.

"I'll be sitting on the bog of the day, watching the tide roll in".

Robin