walk on eggshells
- be very careful about ones actions or words
Wiktionary
Pronunciation: /ˌwɔːk ɒn ˈɛɡʃɛlz/ / /ˌwɔk ɑn ˈɛɡʃɛlz/ / /ˌwɑk-/
verb
Etymology: 1800s usage, probably from the imagery that eggshells are easily broken when stepped upon.
- To be overly careful in dealing with a person or situation because they get angry or offended very easily; to try very hard not to upset someone or something.
- To be careful and sensitive, in handling very sensitive matters.