Say, that reminds me. Yahoo says
NO MORE HATE: The fans in Houston seem to have gotten over being dumped by owner Bud Adams for Tennessee in the 1990s. Munchak said of course people were upset when a team leaves after 36 years. But Munchak returns to Houston often for charity events, and he said there are still some die-hard Oilers fans who tell them they root for the Titans every week except when they play the Texans.
No idea where they got that from.