I work housekeeping in a hospital and one constant I'm finding across all departments– from nursing to security to lab techs– is that first and second shift seemingly hate each other. The general consensus among second shift is that first shift seems to be committed to doing as little work as possible, even to the detriment of the next shift, while second shift is held to insane standards that first shift simply isn't; the only explanation we have for the latter is that since first shift isn't paid any kind of shift differential, they're not held to as strict of a standard.
For example: at least once a week, second shift housekeeping has their areas inspected by the head of the shift, and we have to make it look as good as possible or else we could get written up. First shift, meanwhile, can just let the public bathrooms by the main entrance go untouched over the weekend and have nothing done until the second-shift supervisor literally writes an email to basically every level of management above him about how this is unacceptable behavior. Even then, I'm not sure they actually did anything beyond wiping the toilet seat.
I'm curious if this is a constant throughout the world of work; I've only ever worked second-shift jobs, so I have no idea what the first shift perspective on this whole deal is.