Given what we know, we can confirm that if while setting up a beaker you notice that the stirring is erratic and unstable, you should immediately turn off the stirring mechanism.
<h3>Why turn off the stirring mechanism?</h3>
The beaker is boiling a substance, making it very dangerous.
Unstable and erratic stirring can cause spilling or even a broken beaker.
The best course of action is to disable the stirring until the problem is fixed.
This will ensure the safety of everyone involved.
Therefore, we can confirm that in order to ensure the safety of all participants, if while setting up a beaker you notice that the stirring is erratic and unstable, you should immediately turn off the stirring mechanism.
