Eric MSP Veith wrote: > Modules are used for mixins. Is it possible -- and does it make sense at > all > - -- to mixin a class into another class? I guess not? $ irb --simple-prompt >> class A;end => nil >> class B;include A;end TypeError: wrong argument type Class (expected Module) from (irb):2:in `include' from (irb):2 -- Posted via http://www.ruby-forum.com/.