Lincoln, the lawyer
As we all know, he was a lawyer before being president.
"Tell the Judge My Hands Are Dirty"
'On another occasion, when it developed that his (Lincoln) client had
indulged in fraudulent practices, he walked out of the court-room and refused to continue the case. The judge sent a messenger, directing him to return,
but he positively declined.
"Tell the judge that my hands are dirty and I've gone to wash them"
was his disgusted response.