Here is a parable, possibly true, that I enjoyed. My source was Erik Peterson.
Several years after inventing radar, Sir Robert Watson Watt was arrested in Canada for speeding. He'd been caught in a radar trap.
Later, 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.
Paul said something similar:
Do not be deceived: God cannot be mocked. A man reaps what he sows (Gal. 6:7).