Getting a later special meeting request with the ceo, at one company, because he wanted feedback on their interview process itself. He then offered me a different job and I had to decline cuz I already accepted another (this was a few weeks after the initial decline I gave)

In another case they just fast tracked me and I ended up declining the job anyways (didn't like the job)

I'm full time employed but I still do occasiobal interviews to keep feelers out for how the market is. But I typically decline most offers cuz they're not good enough to get me to actively quit my current job.