That same Vegas hotel with this theme featured (*) "goddess" waitresses who would proclaim "I am your slave" to guests.
Note: this question is not looking for a type of business. So don't give an answer like "laundromat". One business with this theme was founded in 1959 by a minor league baseball player and boosted its profits in the 2000s by being an early adopter of the Rotary Air Impingement Oven. At a business with this theme, Sanford Waterman supposedly pulled a gun on Frank Sinatra. At that same business with this theme, the Health Department prevented magnate Jay Sarno from nightly sacrificing a baby piglet into a pool filled with piranhas. That same Vegas hotel with this theme featured (*) "goddess" waitresses who would proclaim "I am your slave" to guests. A pizza chain with this theme, once common in K-Marts, was founded by one-time Red Wings and Tigers owner Mike Ilitch. The pizza chain with this theme had a slogan of "Pizza! Pizza!" For 10 points, name this theme exemplified by the Caesar's Palace casino.
Note: this question is not looking for a type of business. So don't give an answer like "laundromat".
ancient Rome [or Roman Empire theme; accept Caesar them before mentioned; prompt on Classical theme]