I can imagine some abusing this technique for things that add little value to their lives but many feel have to get done, such as dusting their fan blades or making their office as neat (as opposed to efficient) as possible. Also, people who are already lazy may choose simpler tasks when applying this technique, as opposed to mentally draining tasks such as studying or improving set skills. Perhaps their should be an addendum to prioritizing goals that provide value (monetary, personal growth, etc.) within the 25 minute mark.