Lack of Care or Consideration

Aren't you putting the cart before the horse by deciding what to wear for the wedding before you've even been invited to it?

The important thing about cooking is not to try and run before you can walk.

Are you sure that we are not throwing the baby out with the bathwater in dealing with this?

I could not care less about celebrity gossip; it's just not important to me.

You can starve to death for all I care.I am not giving you any more of my leftovers.

I haven't given a shit for the show ever since they killed off my favorite character.

He thought he'd get away with his crime, but he reckoned without the FBI agents.

Tony accepted the project without realizing how much time it would take; he always dives in headfirst!

Don't panic about the low sales - let it ride for a while and see if business picks up.