At age 27:
Kurt Vonnegut, Jr. dropped out from his job at General Electric to become a full-time writer.
Henry David Thoreau went off for two years to live alone in a cabin at Walden Pond.
Cosmonaut Yuri Gagarin became the first person in space.
Memphis millionaire Frederic W. Smith, whose father built the Greyhound bus system, founded Federal Express.
Scottish botanist David Douglas discovered the Douglas fir.
Ernest Hemingway published his first novel, The Sun Also Rises.
Boston dentist William Morton pioneered modern anaesthesiology after learning that inhalation of ether will cause a loss of consciousness.
Jimi Hendrix choked to death on his own vomit after ingesting wine and sleeping pills.
Janis Joplin died of an overdose of whiskey and heroin.
Conceptual artist Piero Manzoni crapped in 90 small cans which were then factory sealed and offered for sale at the price of gold.
Bob K., first degree murder, in prison for life with no chance of parole.
Jessica Schram trolled MySpace for seven straight hours during work.