I loved O'Henry when I was a kid. You just can't beat his awesomeness:
http://www.literaturecollection.com/a/o_henry/50/
...
Jeff Peters as a Personal Magnet
Jeff Peters has been engaged in as many schemes for making money as
there are recipes for cooking rice in Charleston, S.C.
Best of all I like to hear him tell of his earlier days when he sold
liniments and cough cures on street corners, living hand to mouth,
heart to heart with the people, throwing heads or tails with fortune
for his last coin.
"I struck Fisher Hill, Arkansaw," said he, "in a buckskin suit,
moccasins, long hair and a thirty-carat diamond ring that I got from
an actor in Texarkana. I don't know what he ever did with the pocket
knife I swapped him for it.
"I was Dr. Waugh-hoo, the celebrated Indian medicine man. I carried
only one best bet just then, and that was Resurrection Bitters. It was
made of life-giving plants and herbs accidentally discovered by Ta-
qua-la, the beautiful wife of the chief of the Choctaw Nation, while
gathering truck to garnish a platter of boiled dog for the annual corn
dance.
"Business hadn't been good in the last town, so I only had five
dollars. I went to the Fisher Hill druggist and he credited me for
half a gross of eight-ounce bottles and corks. I had the labels and
ingredients in my valise, left over from the last town. Life began to
look rosy again after I got in my hotel room with the water running
from the tap, and the Resurrection Bitters lining up on the table by
the dozen.
"Fake? No, sir. There was two dollars' worth of fluid extract of
cinchona and a dime's worth of aniline in that half-gross of bitters.
I've gone through towns years afterwards and had folks ask for 'em
again.
"I hired a wagon that night and commenced selling the bitters on Main
Street. Fisher Hill was a low, malarial town; and a compound
hypothetical pneumocardiac anti-scorbutic tonic was just what I
diagnosed the crowd as needing. The bitters started off like
sweetbreads-on-toast at a vegetarian dinner. I had sold two dozen at
fifty cents apiece when I felt somebody pull my coat tail. I knew what
that meant; so I climbed down and sneaked a five dollar bill into the
hand of a man with a German silver star on his lapel.
"'Constable,' says I, 'it's a fine night.'
"'Have you got a city license,' he asks, 'to sell this illegitimate
essence of spooju that you flatter by the name of medicine?'
"'I have not,' says I. 'I didn't know you had a city. If I can find it
to-morrow I'll take one out if it's necessary.'
...
Needless to say, the grifter "class" is dedicated to Jeff Peters and Andy Tucker.