I just have to...

OK, so now I have to go to the basement and find some suitable yarn in my stash to make the EZ Baby Surprise Jacket. I don't know why, I just have to. I have plenty of other projects going - 'Vog On socks, Perfect Sweater, Baby Hooded Sweater that I started last year, another pair of simple socks with a cool hand-dyed yarn from A Yarn Over Marblehead... but I have to do this. Is there a rhyme or reason? The book arrived on Tuesday... please, stop me before I hurt myself! I need to catch some of that elusive "finishitis" - but does it really exist?