Best thing about sick leave, though, is NOT HAVING TO USE IT.
TVA is an oddity within the fed. Pay scales are remarkably similar to the rest of the utility industry. There is no civil service protection, though many departments are union. Social security is collected. Benefits line up fairly well with the utility world as well. And it might well be the only federal agency that isn't bathed in red ink.
Best thing about sick leave, though, is NOT HAVING TO USE IT.
That's for sure. But the second best thing about sick leave is that it is there when you need it. I burned up about 15 days after a fairly nasty car accident earlier this year. 6 of those days were in ICU. Glad to have sick leave when needed.