@Lustig Andrei,
Right, but who's actually operating the HR office? There must be admin folks managing the payroll, and they must be federal government staff, no? Maybe Obama could send them a memo that they should all take a forced leave until further notice. Come to think of it, he should also send the senate security personnel home, and the sweepers and the maintenance crew as well.
'Mr Congressman/Ms Congresswoman, you're entering the premisses at your own risks... Do mind the homeless people sleeping in your office. They're armed so there's nothing I can do... I must go now, I'm alternating as a pizzaiolo during the shutdown.'