lol.short answer? yes. the rule is one hundred percent italian.a lot of guy arent full italian, but its one of those winkwink nudge nudge things. if someone knows your not full italian, it can be used against you if the two of yous got a beef. then again its dangerous to know some one isnt full italian too. works both ways. back in the late 70s and early80 s,they made guys that were only half. i think that rule was repealed in the mid 80s?dont quote me on that.
