I’m sure there are a lot of folks who will only attend Oscar Wyatt’s funeral to make sure he’s dead. The Houston oilman, who died Wednesday at age 101, made plenty of enemies.In the seventies, the questionable business practices of his company, Coastal States Gas, stuck the people of San Antonio with sky-high bills. In the eighties, he convinced one of his stepsons to sue his uncle, a.k.a. Wyatt’s brother-in-law, Robert Sakowitz, when he thought the latter was mismanaging the family department store chain. In the nineties, he paid kickbacks to Saddam Hussein’s government, in violation of United Nations sanctions. (For that he was convicted, at age 83, and spent nine months in federal prison.)Married four times, Wyatt was considered—to put it politely—a swordsman. “Oscar…