Well yeah.
It completely sucks but that is (an unwritten) part of what they're paying you for.
Just make sure you don't end up doing it for your health when you're not getting paid.
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"Alas, our dried voices when we whisper together are quiet and meaningless, as wind in dry grass, or rats' feet over broken glass in our dry cellar." --TS Eliot, "The Hollow Men"