网友自己也大概看一看相关的解释。仅仅在罪案高发区巡逻，并不构成梁开枪的条件。

Imminent danger is an immediate threat of harm, which varies depending on the context in which it is used. For example, one state statute defines imminent danger in relation to mines as "the existence of any condition or practice in a mine which could reasonably be expected to cause death or serious physical harm to any worker if mine operations were to proceed in the affected area or if workers were to enter the affected area before the condition or practice was eliminated."

Some laws allow use of deadly force when imminent danger is present. Typical considerations to find imminent danger include the attacker’s apparent intent to cause great bodily injury or death, the device used by the attacker to cause great bodily injury or death, and the attacker’s opportunity and ability to use the means to cause great bodily injury of death.