You find a monster in your cupboard. Is it good or bad? What happens next?

If I find a monster in my cupboard, he would be big and tall, he would be hairy and he would have kind eyes. This monster would be blue colored and very friendly. He would be interested in making new friends. He would tell me about his reality, social structure, life phylosophy, I would tell him about our reality. I would ask him to bring me some of his books and music.

The piscure of a monster were taken from here.

It's kind of interesting question and I'll try and draw my kind monster to show you.
So, if you find a monster in your cupboard, what would it be, kind or evel? What happens next?