tickle the dragon's tail

Etymology
From the obvious risk of tickling a dragon's tail. In physics, it was to describe the experiments of  at.

Verb



 * 1)  To do something that has a risk of going catastrophically wrong.
 * 2)  To annoy an irritable person.
 * 3)  To bring two subcritical masses close together in order to find the edge of criticality.
 * 1)  To bring two subcritical masses close together in order to find the edge of criticality.
 * 1)  To bring two subcritical masses close together in order to find the edge of criticality.