Because he wanted to win the "Nobel" prize!
For the chance to gain some experience in the service.
He wanted rich milk!
The barkeep asks. "I won it, playing cards", says the pig.
Using saxitoxin.
Because the photon was incoherent.
Scientist A: Are you sure? scientist B: Trust me, I know what i'm doing.
Because he was outstanding in his field
The Nobel Prize in Genetics.
They weren't invented yet.