Ethnic Cheer is a recurring theme to the constant murals and paintings that exist in Problem Sleuth. Typically any form of art that exists is filled with Ethnic Cheer, which seems sort of silly existing in the prohibition era.
Team Sleuth however, has a rather adverse reaction to this genre, and they go into wild fits of despair when gazing upon it. It.. It... It's quite disconcerting.
What's more disconcerting is that Problem Sleuth felt that having his own wall redone as a mural filled with Ethnic Cheer was the best $11,000 he ever spent; his nigh-apoplectic convulsions at the sites of later Ethnic Cheer murals suggest that he might have been insane at the time of the purchase.
- The mural is real, and in Cambridge, MA. It is by David Fichter.