- Bava Kama 9b
Although the verse specifically mentions only the mitzvah of building a ma’akeh (parapet) on the roof of one’s house to help prevent a person who goes there from falling and losing his life, Rabbi Natan teaches that this verse is also the source for not having dangerous objects around one’s house.
Samantha: Any animal you have in the house can be just as dangerous as a bad dog. There once was a lady with an earlobe piercing and the bird pulled out the earring and ripped the earlobe in half because the bird was jealous because she was spending time with her grandkids and not the bird.
Chloe: In your house, you can prevent any dangerous hazard to make sure no one will get hurt. For example, if you have a pool, make sure you have a fence so no one can drown.
If when building a house you forget
To furnish a parapet
If some careless clown
Should climb and fall down
His bruises could put you in debt
Maya: If you don't make your house safe, then someone could get hurt, and then the blame will be on you. So no matter what, you need to make sure no one can get hurt purposely in your house.
Samantha: You definitely don't have to blame the toddler because they don't have enough life experience to know that they are going to fall and crack their head open.