Several years after he invented radar, Sir Robert Watson-Watt was arrested in Canada for speeding. Ironically, he was caught by a police officer using a radar gun. Afterwards, he wrote this poem:
Pity Sir Robert Watson-Watt,
Strange target of his radar plot,
And this, with others I could mention,
A victim of his own invention.
Sometimes the things you do come back to haunt you.
“Do not be deceived: God cannot be mocked. A man reaps what he sows.”—Galatians 6:7.