Pro 25:16  Have you found honey? Eat only what you need, That you not have it in excess and vomit it.

Pro 22:2  The rich and the poor have this in common, The LORD is the maker of them all.

Pro 21:12  The Righteous One observes the house of the wicked; he throws the wicked down to ruin.

Pro 20:17  Bread obtained by falsehood is sweet to a man, But afterward his mouth will be filled with gravel.

Pro 19:11  Good sense makes one slow to anger, and it is his glory to overlook an offense.

Pro 18:2  A fool takes no pleasure in understanding, but only in expressing his opinion.

Pro 15:27  Whoever is greedy for unjust gain troubles his own household, but he who hates bribes will live.

Pro 14:23  In all labor there is profit, But mere talk leads only to poverty.

Pro 13:6  Righteousness guards the one whose way is blameless, But wickedness subverts the sinner.

Pro 12:16  A fool's anger is known at once, But a prudent man conceals dishonor.

A foolish person or a wicked person cannot contain themself, they have to broadcast their outrage.  

A wise man though keeps the poker face and doesn’t fly off the handle.  

You can also tie this into swearing, someone who can’t keep their rage in check tends to swear a lot, dropping F-bombs when something breaks or doesn’t go their way or calling someone who upset them a curse word behind their back or to their face, today’s Proverb tells us, these are hall marks of a foolish person.

On the other hand, as our Proverbs so wonderfully does - while it shows one end of the spectrum, in this case the angry fool, it also gives us the polar opposite; the prudent and God fearing person keeps their feelings to themself, because in the end that person knows that whatever vexing situation is at hand, it is God’s will, God is sovereign and God predetermined our circumstances before the universe was ever formed.  

Good words to live by, especially in our everyday lives where a situation challenges us, we remember the fool can’t keep their cool, but the wise person is able to conceal their emotions.