Breadcrumb: It was good while it lasted

When Samuel appointed Saul king, he told him to go down to Gilgal and wait for him before making the ritual sacrifices. So Saul goes, along with his army, and waits. He waits seven days, but Samuel never shows up. Finally, the men grumble and start leaving, and Saul decides to take things into his own hands. He offers the sacrifice and... you guessed it, Samuel shows up just as he's finishing. For Saul's disobedience, Samuel prophesies that Saul's kingdom won't continue, and God will choose another to replace him. Which is sort-of a shame, since Saul's son, Jonathan, actually looks like he'd make a pretty good king. On the other hand, it gives full justification for David to oust Saul later in the book, so all is well. (1 Sam. 13:7-15)