My places test suite nukes my local development environment for the full integration tests. If I am working on a hairy piece of code I open up a PR and let the CI system farm out the suite to multiple instances so I can get an answer in less than an hour.

The "right" answer is probably to refactor the test suite to be more performant, but that's never going to get approved given the amount of work that would take, and it would take me longer than I plan on being at the company to get it fixed in my spare time.

I do have it passing all tests before I try to merge if that counts?