Dennis: (reading) "...is an unusual animal because it has no mouth, digestive tract, or apparent way to eat. Instead, the riftia allows bacteria to live--" Oh my, what is that awful smell? (Oscar grins and winks.)
Stanley: Hey, guys. How's it... ew!
Harry: Oh! What happened, dude?
Elsie: Gad, Dennis! It smells like my litter box in here!
Dennis: Me?! I didn't do it!