What contrasting frustration is mentioned as potentially less tedious than working through deep, sticky, wet clay?

Answer

Digging soil that is frozen solid

Some people observe that the sheer difficulty of working through a deep, sticky, wet clay layer can feel more frustrating than dealing with soil that is frozen solid.

What contrasting frustration is mentioned as potentially less tedious than working through deep, sticky, wet clay?
moisturesoildiggingclay