The problem for most white-collar workers is that the actual work demands are low, but the emotional overhead of subordination and mandatory presence is as bad as ever. The T-shirt describes someone for whom the work demands are low, presumably because of a defective office culture that leaves everyone enervated.

Easy jobs are usually emotionally harder than difficult ones, if that makes sense. Most white-collar environments boil the work down to triviality (the executives take the fun stuff, and the challenging projects aren't attempted, being "too risky") and become similar to prisons: mandatory presence beyond purpose.

Jeez, what's your schedule like?