When I travel, I draw and paint sketches which is great fun. And as long as you are fully aware that it has nothing to do with actual art, I think that's all right.
With a painter or a sculptor, one cannot begin to alter his works, but an architect has to put up with anything, because he makes utility objects - the building is there to be used, and times change.
You will soon find that I am a bit obsessive about my work. And that is a little sad, one often feels strangely restricted, not finding time to simmer, although one actually has many interests.