There's/that's... for you disapproving informal
This phrase is often used under the implication of irony.
Someone or something is a typical example of someone or something bad
You helped her a lot, but she betrayed you. That's gratitude for you!
A: "I can't believe he had an affair with his secretary." B: "There's men for you!"
A legal matter that is very easy to solve
The house owners didn't lock the doors before going out, and that's why they got broken in. This is an open and shut case.