Pro tip from someone who got cut in 2008:

When they send a sheet around your work asking who is and isn’t essential, don’t say you aren’t essential because you want some time off. Yesterday all these people where I work said they weren’t essential, send me home, signed the sheet, today they are backpedaling faster than Lance Armstrong. Be smart people, don’t get excited to not work and claim you aren’t important or you just might end up sick and unemployed.

Sadly, this is the type of time to remain a rockstar at work if you can.
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Maybe he's born with it.

Maybe it's amphetamines.