You could look at it that way. Hours of time would be spent like this toward the end of the day so why not just go home?
In addition, mindlessly repeating experiments isn't a break.
In addition, mindlessly repeating experiments isn't a break.
What constitutes a breaks of course different for each person. Maybe some prefer go to gym instead or going for coffee, or simply just strolling around.
Not always true. In the US, you can be required to stay on premises, but it must be paid.