I really don't see how I could have been repairing the wall any faster than to have two or more adults working on it at one time. So, it really was not a question of taking too long to complete the job. The same with the floor repairs -- I like to wait until I have at least one kid over 14 so that I can put two or three adults on the same repair job, speeding up the repair time.
Therefore, is it not a little unfair to have to wait for the wall compound to appear in the 'store' again, and to have to spend even more money for it?