חֵרֵשׁ שׁוֹטֶה וְקָטָן פְּגִיעָתָם רָעָה

ביטוי (אנגלית)

The deaf, the insane, and the minor: their harm is serious

הגדרה (אנגלית)

A deaf person, an insane person, and a young child may cause serious damage, because compensation cannot be recovered from them for the harm they cause. Under classical law, none of the three is legally responsible for their actions; however, anyone who injures them must pay for the damage caused to them.

(See: Baba Kama Paz A"a La'il)