i won't hold my breath - This is what you say when you're ready to give up but also s

This is what you say when you're ready to give up but also still a little bit hopeful.

Your friend: I won't hold my breath. Because your dog still hasn't peed on my carpet.

Your crush: I won't hold my breath. Because you're still texting your ex.

Your teacher: I won't hold my breath. Because you still haven't finished that homework.