If someone walks past a parked car with a stroller, the stroller got caught on the plastic casing around the number plate and a small piece broke off, is it wrong to walk off? What would halacha say the owner of the stroller is responsible for?
Depending on the case, this question - Hitting a double-parked car - may have the answer.– Danny SchoemannDec 2, 2015 at 15:01
It would seem from the Shulchan Aruch in Choshen Mishpat סימן שעח - אסור להזיק ממון חברו that one is responsible for all damage caused in the public domain, even unintentionally.
א: אָסוּר לְהַזִּיק מָמוֹן חֲבֵרוֹ. וְאִם הִזִּיקוֹ, אַף עַל פִּי שֶׁאֵינוֹ נֶהֱנֶה, חַיָּב לְשַׁלֵּם נֶזֶק שָׁלֵם,
בֵּין שֶׁהָיָה שׁוֹגֵג בֵּין שֶׁהָיָה אָנוּס.
וְדַוְקָא שֶׁאֵינוֹ אָנוּס גָּמוּר, כְּמוֹ שֶׁיִּתְבָּאֵר.
כֵּיצַד, נָפַל מֵהַגַּג וְשָׁבַר אֶת הַכְּלִי, אוֹ שֶׁנִּתְקַל כְּשֶׁהוּא מְהַלֵּךְ וְנָפַל עַל הַכְּלִי וּשְׁבָרוֹ, חַיָּב נֶזֶק שָׁלֵם.
Which translates to (roughly):
It's forbidden to damage other people's property. If one damaged other's property - even if one gained nothing in the process - one has to pay full damages.
This applies whether one damaged by accident or on purpose.
The exception being if it was entirely out of one's control, as explained later.
E.g. falling off a solid ladder, caused by a rung being worm-eaten, or any other Force Majeure as described in ג later: הָיָה עוֹלֶה בְּסֻלָּם וְנִשְׁמְטָה שְׁלִיבָה מִתַּחְתָּיו וְנָפַל וְהִזִּיק, אִם לֹא הָיְתָה מְהֻדֶּקֶת וַחֲזָקָה, חַיָּב. וְאִם הָיְתָה חֲזָקָה וּמְהֻדֶּקֶת וְנִשְׁמְטָה אוֹ שֶׁהִתְלִיעָה, הֲרֵי זֶה פָּטוּר, שֶׁזּוֹ מַכָּה בִּידֵי שָׁמַיִם הִיא. וְכֵן כָּל כַּיּוֹצֵא בָּזֶה.
E.g.: If you fell off a roof and broke somebody's utensils, or you tripped while walking and fell on a utensil and broke it, in both cases you are responsible for full damages.
Practically speaking one should probably put a note on the car's windshield with contact information.
2You should mention the shave prutah limit. Dec 2, 2015 at 13:30
3@sabbahillel - can you find a source that for less than a Pruta you don't have to pay? I can't. Dec 2, 2015 at 13:54
1I was thinking of the various sources that bais din cannot rule that payment is due for less than a perutah. Probably less than a perutah would be required under "hayashar vehatov" and as a midus chasidus. Dec 2, 2015 at 13:59
2@sabbahillel - nu? So here we're not talking about beth Din - OP wants to know how to behave. Hard to believe that when a small piece broke off it's going to cost less than a penny or 2 to fix. Dec 2, 2015 at 14:15
Your probably right. I tend to write the differences just to be complete. Dec 2, 2015 at 14:38