Edison

Edison invented the telegraph

When Edison was a boy of 15, he worked as a telegraph operator

He worked from 7 a.m. to 7 p.m.

He worked at night

Edison sent signals with astonishing exactness

The inspector came because no signals were coming

Edison showed his invention to the inspector

The inspector did not wake the boy up to see how the mechanism worked

The inspector advised Edison to patent his invention

Edison was fired for sleeping on duty