Answering an essential answer while in the middle of another

Question

Some congregational responses are of the "highest level"; required except in special circumstances, like during sh'mone esrei, in the beginning of krias sh'ma, and in the middle of a short bracha.

Some occur in pairs with relatively short time in-between:

1. Kaddish: Amen, yehei sh'meih rabba and Amen after D'amiran b'alma, v'imru
2. Kedusha: Kadosh kadosh kadosh and Baruch k'vod

If the chazzan is so fast that, at the time for the second response, a congregant is still in the middle of his first response, how should he act?

^{(There may even be a difference between the two examples, as kaddish may be interrupted for other responses, whereas kedusha may not.)}

Answer 1

If the congregation finished the second response before the congregant finished the first response then he "loses" out. Otherwise he can respond both responses back-to-back.

Answer provided by a rabbi on pocketrabbi.com a quick response system for answering halachic or any torah questions that a Jew might have.