A: I hate brushing my teeth. B: It's such a chore. A: Brush, brush. Spit, spit. B: What did they do in the old days? A: They brushed with their fingers. B: They also ate with their fingers! A: Why do they call it the good old days? B: Maybe because they didn't have to brush and floss. A: Who invented flossing? B: A dentist, I'm sure. A: I hate flossing more than brushing! B: I can't wait till all my teeth fall out.