What 
Wage Slave says when unwell. Every mood's lines are on their page.
60% of the time, then a cooldown of 1 hour.
Details1
Says one of these
1- "Just push through it. Rest a bit, then back to work."
From the game files1
NpcMonologue 6
| ID | 6 |
|---|---|
| NpcConfigId | 2002 |
| MoodType | 1 |
| Rate | 0.6 |
| TypeCD | 3600 |
| RandomText | ["NpcMono_Man_LowVit_1"] |