I hate to be that weird person on here that met someone at my doorstep, but...
I was hungover and I ordered a cheese steak... I was in my pjs, hair a mess, gross... and the pizza guy came to my door (I was 18, he was 19)... we spoke three sentences to each other... and I knew I was going to date him (I even made a comment to my friend in the house)... he basically tracked me down (apparently we knew mutual people), called me, and we went on a date. From there- we dated for 4 years. I just broke up with him this past April.
Who says love won't come to your door step?
So yes, I believe in that whole "not looking" theory too.