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!"
You try or experience something such as a new job, activity, etc. so that you become more familiar with it.
I worked as a teaching assistant for two months, just to get my feet wet.