Reference for Bava Kamma 57:10

ה"ד אי דאיכא דרכא אחרינא פושע הוא ואי דליכא דרכא אחרינא אנוס הוא

is of the opinion that stumbling does not [necessarily] imply negligence.<span class="x" onmousemove="('comment',' 'INTENTIONALLY' stated in the Mishnah would thus mean where there was intention actually to break the pitcher, for if the intention was merely to bring the pitcher below the shoulder it would come under the term 'UNINTENTIONALLY', the ground advanced by R. Judah is that in the case of stumbling and breaking a pitcher and doing thereby damage, no negligence was necessarily involved. ');">¹⁰</span>

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