Should I load the gun already in case you'll think about trying a new VCS, SaaS, task/todo/wiki tool or are we talking strictly about ingestible new things?
I do those things because they're fun, not because they'll make my employer more money. Things that aren't fun, I try out at work time.
Personally, I try to also have fun when I work, but I understand that that's not everyone's situation.
That's neither here nor there, though. The argument is "the only time I do unfun things that benefit work is when I'm getting paid for them", not "I never do fun things at work".
How frequently do you consider taking psychedelics at work? I suspect I know the answer, and that you can see why that line of reasoning is a bit dishonest