Raven's class partner, Ben, has an unbearable body odor that completely repulses Raven. She wants to tell him that she cannot work with him because of it but has trouble doing so because he flattered her with a compliment.
This representation of cavities and bacteria shows workers chipping away at King Dedede's teeth. Dedede's reaction shows how painful a cavity can be: it affects his sleep. Dedede and Tuff are both scared of going to the dentist and try to avoid it.
Kramer has drastically different opinions on cleanliness than his friends. He believed it was critical to be in the shower for an hour to reach optimal levels of cleanliness. Jerry and Elaine get by with ten minute showers and give him a few tips to improve his showering efficiency and technique.