Eager knitter

A crafty spider has been living behind my window for several weeks now. This hard-working creature has knitted some amazing lace and keeps repairing her knitwork on a daily basis. The lovely textile also served well as a protective mosquito net with open windows during summertime.
Just thinking, would the spider learn to use new patterns, if I'd (completely unintentionally, of course) forgot a stitch pattern book on the window sill...
I have read about tests, where caffeine was given to spiders and that totally messed up their webs. Strangely, with me it's just the opposite.