When outlining say the hull of a ship, I find myself spending too much effort in defining the triangular faces that result from a curve that cuts across the basic grid structure to define the bow. So why can't I use the 'face' command to easily make these? It's seven clicks using the "multiple sides" mode of the 'face' command. (Also, "insert point" or "insert edge" do not allow me to complete a triangle over a concavity.)
In these situations, in the normal quadrilateral mode, if I click the fourth-vertex onto the place of the first, I get into a situation that would confuse any beginner: a degenerate quad! It looks just like a triangle. Why would anyone make such a thing? And why's there no warning?