Simon is an obnoxious and boorish heavy drinker, layabout and general freeloader, Simon has a difficult relationship with his sister, largely because of Simon's uncouth and selfish nature. He sometimes calls her "Stilts", referring to how she was tall for her age when she was younger. He is greatly disliked by both Frasier and Niles, partly because of their class-conscious nature but also because when in Seattle he frequently stays with one of them, often taking unreasonable liberties with regard to their homes, possessions and alcohol supplies in the process. Conversely, he gets on quite well with Martin and, despite his many negative qualities, he also seems to be a favorite with their mother, and is quite a popular man who is very successful at attracting women.