My last boss insisted on using tables instead of divs and then asked me to make it responsive (every damn time). Also, functions that were over 10k of lines.

Fuck, I know that feel bro.
Boss: I'm old school programmer. The code should be linear, we don't need it modular. Let's just coppy paste every fucking piece of code that runs in multiple places. And so on...

@unDone Yea, and for some reason those functions would always cause bugs (I wonder why??). It was straight up 3h long debug sessions about once a week. The headache...

@unDone Any updates? Did you fix this problem with your boss?

@benjaminhorne indirectly...
Changed job. Now I learn new stuff, I feel like my programming skills skyrocket compared to what was before. From my current perspective, even if I could make my boss to listen to me, it wouldn't be much better.