You are a great friend indeed. I had similar situation in which a friend brought me back an "ISOM" RyJ from a cruise. I'm not a seasoned pro, but I could tell by the lack of quality on the band that it wasn't authentic. I gave him the excuse that it was looking a little dry(which it was) and that it should go in the humi for awhile and we would smoke it on a special occasion. I instead took out a couple of A.F. Hemingway Sig's and we lit those up instead. He was amazed at how good they were and so far has not mentioned the "ISOM". I still have it by the way.

So, next time he brings some Mac's, use my excuse and introduce him to a real cigar.