Triggerish

In other words all things are in a state of triggerish opportunity or danger.

Source: wiktionary

I didn' laugh at the moment, not bein' a triggerish chap at a joke. But it'll come in time. That's why I joined the sappers.

Source: wiktionary

They are nervous, triggerish, energetic, and — oddly enough — physically enduring, as they must be to survive the New York, New Haven and Hartford.

Source: wiktionary

Like many fire brigade men I have met, he is alert, very triggerish on the subject of fire risks, and warm-hearted. If the men in the Fire Service were not humane, more than anything else, they would not be in so risky an occupation.

Source: wiktionary