Yeah I used to piss off the CFO a couple of jobs ago by spending entirely modest amounts of money to make the engineers happy/productive and explaining "this is something where I would spend my own money to do this, and in fact I did, if you don't want to cut me a reimbursement check then don't."

It's always kind of crazy to see finance people bitch about buying dinner or espressos for the team when they're working late.

But sometimes the company ends up with a tightass CFO like that after the founder buys a $20k couch, so there we go!