Walk on eggshells
Meaning
Act very cautiously to avoid upsetting someone.
Usage
Used when behavior has to be restrained.
Origin & History
Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.
Careful movement to avoid cracking eggs.
Used in relationships and offices since the 19th century.