Protect your good hands:
classic scenario
you are holding 44 and you hit the last 4. but there are also two cards of the same color on the deck.
To ensure you don't get bad beated by a flush you have to bet full pot here, for the love of god, don't fucking slowplay this one
If someone raise before you, you reraise, You have a slid hand, so protect it!
Such good advice

....but it's so tempting to slow play when you flop trips