There was this boy in high school that was what you would
consider a nerd.
Anyway he had his own lab in the basement of his home and
one night he came
up and said "Dad look what I made." So he poured a flask
of fluid into a
pot of soil and instantly grass started to grow.
Of course his dad was
really impressed with this and asked his son if he can
make something to
make his penis grow.
His son thought for a minute and said that if he did
then dad would have to buy him a convertable.
Dad agreed.
The next night the son came out of the basement and gave
his dad a vial. The
next morning his father came to him and told him that he
had something to
show him. They went to the front yard and the boy saw a
cherry red
ferrari.
The son looked at his dad and said "I only asked for a
convertable."
The dad
replied "the convertable is in the garage. The Ferrari is
from your mother."