Honestly, depending on what it is, if the rules suck then it’s the rules’ problem.
At my last job I was told that they didn’t do overtime but I could bank hours. At some point they said that the spirit of it was that I could use those hours on the same project, not really to make up for missed time during the whole month. But see, overtime hours are always loaded towards the end of a project which would just mean I’d be giving them free labour when I was already not paid that well. I kept track of my extra hours and used them all the time to make up for missing whatever and while I don’t feel at all bad I’m sure their thought is that I was cheating their stupid, shitty system.
If managers and executives want to get paid so much money for being so smart then you’d think they’d be intelligent enough to do create decent rules. But we all know that they’re not so here we are.