To test multiple tactics at once in order to attain a particular result.
play chicken
As a risky test of courage, to drive two vehicles directly toward one …
trial balloon
An idea, suggestion, or prospective action, product, etc., offered to …
sow the seeds of
To carry out a certain action which will eventually bring about a part…
for fear that
In order to attempt to prevent the risk that (a particular incident or…
for this once
On this particular occasion, to make an exception
for fear of
In order to attempt to prevent the risk of (a particular incident or e…