That such brutal language as “You cock-sucking son of a bitch!” “You prick-eating bastard!” “You cunt-lapping dog!” “Kiss my ass, you son of a bitch!” “A dog must have fucked your mother when she made you!” “I fucked your mother, your sister, your wife!” “I’ll make you suck my ass!” “You cock-sucker!” and many other revolting terms are used by a limited number of players to intimidate umpires and opposing players, and are promiscuously used upon the ball field, is vouched for by the almost unanimous assertion of those invited to speak, and are competent to speak from personal knowledge. Whether it be the language quoted above, or some other indecent and infamous invention of depravity, the League is pledged to remove it from the ball field, whether it necessitates the removal of the offender for a day or for all time. Any indecent or obscene word, sentence, or expression, unfit for print or the human ear, whether mentioned in these instructions or not, is contemplated under the law and within its intent and meaning, and will be dealt with without fear or favor when the fact is established by conclusive proof.
Special Instruction to [National League? baseball] Players (~1898)