Well, at least it prevented you from sneaking off to the pub! Sheep can be a bit of work just with the routine stuff, never mind adding the 'voluntary' tasks! Get them cawed oot, or at the very least tup them with a terminal sire and make your life easier down the road.
Fortunately not our sheep..... just a place I worked on at the time.
Funny enough I'm fairly well put off swales now.(obviously there's plenty of very good swales about)