Twitter Inverted

I think the problem with Twitter is its mundane question, "What are you doing?" It is the reason the hompage is filled with posts like "Eating tuna" and "Thinking of carpeting". It seems like it would be more interesting if it was based around the question "What aren't you doing?" Sure you still might get somewhat dulll answers like "Work" and "Practicing any kind of hygiene", but it seems you would also get a number of more creative answers like "Expressing myself through creamed corn" and "Putting a saddle on my neighbor."