Batteries Can Be Used At The Same Time, Though

(I go to an all-girls school. It is my third year, and I am sitting in French class. My French teacher is new to the school, and is known for being strict and never cracking a smile.)

French Teacher: “Girls, can anyone tell me what the French word is for ‘battery’?”

(Everyone looks at each other, clueless.)

French Teacher: “I’m sure you all know it; it’s a very popular brand of batteries. It begins with a D.”

Student: “DUREX!”

(Here in Ireland, Durex is a condom company.)

French Teacher: *trying to refrain from laughing* “Eh, no, [Student]. It’s Duracell.”