All the other departments get last looks. How unfair. So, eh...why not 'First Listens'?
All too often, some offensive aural artifact (like a buzzing HVAC register, rat squabbles in the walls,) isn't audible until every one settles..
So, in some shoots ~ usually small movie projects, whenever possible, I've (after a little diplomatic quorum with the AD and the DP, where I offer them more time for beer at the end of the day), arranged for first listens. Yep, I light up the mics and have the AD call for settling, and thirty seconds of no work, so I get a chance to discover anything that's going to take a while to quiet. This way, I can get working on it concurrently to the other departments' builds, and have the issue solved by roll time, and not have to hear "waiting on sound".
This would be in addition to having the boom op wander the location with the live boom, later, but during the build, seeking noisy ballasts, or rattling gels, etc.
If I can't quiet the rats, I'll effort to get audio post some rat tone.