I often try to imagine the person who wrote this - standing there on the open ledge, scrawling the message for the whole world to see. Most probably at night, with the black endless sky above him (or her!) and the stifled sounds of sirens and laughter coming from the city below.
Anyway, looking up and seeing it always makes me smile. Even if I'm at uni on a Saturday (as I was last week, when I took these photos).
Trust me, that's sayin' A LOT.