Oscar has a plan to paint a painting that is so grouchy and horrible it will make everyone on Sesame Street mad. He makes several messy brushstrokes on the canvas, but Alan finds it to be very expressive. How can Oscar make the painting messier? He observes Maria squeezing a squeeze bottle too hard and mustard splattering onto her sandwich, making a mess. This gives Oscar the idea to use squeeze bottles for his painting. He squirts a few splats of paint onto the canvas. Leela admires the painting and says it reminds her of fireworks. Oscar is now frustrated because his painting is not making anyone angry. He realizes that the paint colors are too nice. With Abby's help, Oscar notices a spot on the painting where the blue and yellow paint mixed together, creating a grouchy green color. Oscar squirts blue, yellow, and a little bit of red paint onto his palette and mixes them together. The paint turns into a dirty brownish green grouchy color. He makes a big batch of it and decides that rather than making little splatters with the squeeze bottles, he is going to use a different paint tool that has enough force to make a huge splat. He brings in his pet elephant, Fluffy. Fluffy blows on the pile of paint and creates a gigantic splat on the canvas. Everyone comes by and thinks the painting looks amazing. Oscar is now angrier than he's ever been. He didn't make anyone angry with his painting. Abby points out that he did make one person angry - himself! Oscar feels so great about being this angry that he decides to make another painting.