Bob Hearn writes "Some Slashdotters might remember the story Caltech Pranks MIT's Prefrosh Weekend from a year ago. MIT Hackers have gotten even. Sometime in the middle of the night, Caltech's famous cannon appeared at the base of MIT's Green building. A plaque in front of it reads: 'CALTECH CANNON April 6, 2006 MIT hackers posing as the Howe & Ser Moving Company Appropriated this cannon on March 28, 2006. It later appeared on MIT's campus with the addition of a large brass rat made of gold-plated aluminum. In honor of its previous owners, the cannon points towards Padadena, CA.' The brass rat (MIT ring) is really a rather impressive bit of aluminum machining. Harvey Mudd College previously stole the cannon, in 1986, but later had to give it back."
As far as the laws of mathematics refer to reality, they are not
certain, and as far as they are certain, they do not refer to reality.
-- Albert Einstein