Conversation between me and Miska when we cleaned earlier today:
I - You who are tall, can not you dust that shelf?
Miska - Yes I can do that!
I - I do not know if the bench below is standing on, so I never dust there. So it's probably very dusty now!
Miska - Okay.
I - But Miska, you have to remove all stuff before you dust, you can not just dust around!
Miska - Why not? It will still be just as dusty again soon.