I don't believe you.

Even if they told me themselves I wouldn't believe them.

Even if they were beaming with joy as the black circles in their eyes squinted while swearing there is no better joy than that of labour I would do what one of my ex-employers did and turn off machinery at 17.00 sharp.

There is no happiness in working long hours; there must be no happiness. Happiness must be verboten for anyone who thinks that undermining organized labour gains is "loving what they do".