Would you explain? This question is relating to New Concept English(Book3 Lesson 6). http://www.putclub.com/html/course/classic/newconcept/book3/2008/0926/7321.html Is the following sentence natural(in English)? "One of the thieves was struck by a heavy statue, but he was too busy helping himself to diamonds to notice any pain." I want to know whether the phrases "helping himself" and "busy helping ..... to diamonds" are natural or not.