But if you come across such an application you will know better whether you'll need such a feature or not. Such applications are as rare as a two-headed chicken (although you can produce an example at will, as well as you could most probably produce two-headed chicken by genetic manipulation :-) )

Btw. I did not understand your example, please forgive my dumbness.

In most multidrop communication applications, either the master decides when to address a certain device - ergo the device must be prepared to accept the address at any time (so it does not matter whether it has to accept its own address or any other's); or it can simply disable the interrupts and the master is able to recover from a slave not responding.

JW