'Something' in the Bible

Uriah replied, "The ark, along with Israel and Judah, are encamped in tents, while my commanding officer Joab and my master's staff members are camping out in the open fields. Should I go home, eat, drink, and have sex with my wife? Not on your life! I won't do something like this, will I?"

On the seventh day the baby died. But David’s servants were afraid to tell him the baby was dead. They said, “Look, while the baby was alive, we spoke to him, and he wouldn’t listen to us. So how can we tell him the baby is dead? He may do something desperate.”

Then David got up from the ground. He washed, anointed himself, changed his clothes, went to the Lord’s house, and worshiped. Then he went home and requested something to eat. So they served him food, and he ate.

Jonadab said to him, “Lie down on your bed and pretend you’re sick. When your father comes to see you, say to him, ‘Please let my sister Tamar come and give me something to eat. Let her prepare food in my presence so I can watch and eat from her hand.’”

The woman asked, “Why have you devised something similar against the people of God? When the king spoke as he did about this matter, he has pronounced his own guilt. The king has not brought back his own banished one.

Then the king answered the woman, “I’m going to ask you something; don’t conceal it from me!”“Let my lord the king speak,” the woman replied.

But if he should say something like "I'm not pleased with you,' well then, here I am let him do to me whatever seems right to him."