One Piece Chapter 44, page 7: The 3 Cooks

Patty practices his customer service face in the mirror, showing a terrifyingly wide, fake grin. He mutters his true feelings under his breath while maintaining a polite tone: "AND THE FOUNDATIONS OF GOOD SERVICE, IS A KIND AND PLEASANT WELCOME! WELCOME, YOU SQUID-FACED BASTARD!" He continues his practice, smiling widely while saying, "PARDON ME, DUMBASS." and "PLEASE NEVER COME BACK AGAIN! THAT'LL COME TO 10,000 BELIS!" Satisfied with his practice, Patty walks out of the washroom, feeling refreshed and saying, "AHH, THAT WAS A GOOD DUMP! I FEEL GREAT AGAIN TODAY!" He struts down the hallway, singing, "MOTTO, MOTTO! SERVICE MOTTO! THE CUSTOMERS ARE GODS!"