Lazy ceiling fans rearranged the 80-degree air Friday as a Christmas songster crackled out of patio speakers about snowy scenes and Yuletide bliss. But the two-fisted diners slouched around tables littered with napkins pulled from beer-carton dispensers and half-empty hot sauce bottles, paid the cultural amenities no mind. This was Otto's Barbeque and Hamburgers, and these guys — and maybe a few gals — had come to eat. To eat and, perhaps, to mourn. Otto's, famed as former President George Bush's favorite barbecue eatery, is heading for the last roundup.