walk a tightrope
US /wɔk ə ˈtaɪt.roʊp/
UK /wɔk ə ˈtaɪt.roʊp/
1.
to be in a difficult situation where a small mistake could have serious consequences
:
•
The company is walking a tightrope financially, trying to avoid bankruptcy.
•
As a diplomat, he often has to walk a tightrope between conflicting interests.