Am I crazy?

I decided, on Monday, that I should knit a scarf for my mother. I'm flying down there on the 17th for a few days. Do you think it will be done by then? I'd love to have it done before I go - then I could block it here - but if I can't get it done by the 17th, maybe I can knit on the plane? It's moving right along (although I must admit my left shoulder is sore - from too much knitting time??).

I must be crazy.