ladders

i have noticed a strange phenomenon around campus--a single ladder, never occupied, that has been travelling around the outside of several buildings on campus. i first noticed this by the library, where it was unassumedly leaning up against the outside of the atrium, right next to the entrance. i next spotted said ladder against the hfac, again unoccupied and again just nonchalantly leaning up against the side of the building. this, i believe, is more odd than rare.