Yes I have considered learning sign language, I actually had begun learning it, but something happened to my tutor,so I never found another tutor, but it was coming on well, it was easy to follow.
I have actually never heard of it, in this terms,, but from the examples you have given us, I would say furniture sofa and tables fill my leaving roon, the bed causes me tio lie down and get some rest, that is the best I can do.
No Ihave never ever thought of learning a fictional language, first of all, I never knew that there were some fictional languages out there, this has come to me as news, but it is a good thing ,am now awre of it.
Between learning a new language on a course or with a private tutor, I would rather have a private tutor , to me it is more efficient to learn this way , that way you get all the attention.
For me, I have alot of friends who speak Spanish with little English, so that is one of the reasons am learning spanish and also the sound of spanish the they speak it also made me have the desire to learn spanish.
I believe it is important to learn spanish, because it is spoken in so many countries and it continues to spread, so it will be of advantage if one learnt how to speak spanish.
You can earn from some of the online sites like iWriter,freelancer and virtual worker, just to mention but afew, they actually pay for creative writing.
I think it does relate to her work while she is off work, but honestly speaking I do not think that it will benefit her much, but it is a great accomplishment.