Uncle Angelo's preposterous story of how he pretended for 72 (yes, seventy-two) YEARS(!) that he was a priest because he promised his mother on her deathbed that he would become a priest. All this time, Angelo was really happily married and nobody ever clued into that fact and nobody presumably knew his wife either. And when 90(?)-year old Angelo finally confesses to the girls and Stan, nobody is really all that shocked that his entire life had been a lie. His promise to his mother is also inconsistent with ep. 76, "Mother's Day" when Sophia and Angelo's mother is clearly still alive well into the 1940s and/or 50s.