If people react to the little things, there behaviors will be amplified 10 fold for somthing big.

Somone who gets angery over the little things, may be ready to kill somone if somthing big happens

Somone who gives up for small inconveniences, will not try if somthing big happens

Somone who will lie for somthing small, will make a whole story book of excuses and lies for somthing big

Somone who gets offended at somthing not even aimed at them, will take anything aimed at them as a declaration of war.

....

These are some of the examples I have thought of, and of course it's not all inclusive, but seems to be true enough, and can be worth testing and being mindful of as you get to know somone (especially since now and days everyone is so secretive and closed off... or just has nothing going for them)

What are your thoughts on this and what are some other examples you can think of that both support and go against this idea?