If a visitor in someone else's home puts up a mezuza there, and the homeowner will not be home to hang it/make a bracha, does the visitor make the bracha when affixing it? Does it matter whether or ...
Optimally, a father should circumcise his own sons. Optimally, an aliyah should read the Torah when called up. When we are called up for an aliyah, we say the brocha and the baal koreh reads for us. ...