The students were seated, one at a time, at a table in a bare room. On the table were pieces of paper and either the board game Mouse Trap or a large handgun. Their instructions: Take apart the game or the gun and write directions for assembly and disassembly.
Fifteen minutes later, the psychologists again measured <http://www.sciencedaily.com/upi/index.php?feed=Science&article=UPI-1-20060509-12562400-bc-us-gunhormones.xml#>testosterone levels and discovered high levels in men who had had handled the gun, with levels remaining steady in those working with the board game.
Proof that Rube Goldberg machines cause chemical castration.