I realize you're joking there, as you've indicated with your small text. But a lot of users are really confused by this stuff and will actually do this, and over and over again they get robbed.
Desktop computers are actually quite good sources of randomness. They monitor the precise timing between keypresses, mouse movements, disk seeks, network packets, and other sources of enviromental nodes and then they combine this data into randomness pools which are stored by cryptographic hashes so that even if most of the data that goes in is unpredictable, so long as there is only a few hundred bits of actual randomness that makes it in all the output is at least computationally sound.
Bitcoin-qt retains its own randomness pool— really the openssl code— and augments it with further entropy from timing and, on windows, a screenshot at startup.
