The math gods have spoken! In the sacred ritual of unit circle learning, we shake hands with π, π/2, π/3, π/4, and π/6... but π/5 gets the purple teletubbies treatment! 😂 Why? Because π/5 doesn't produce those beautiful, clean sine and cosine values that math teachers worship. While the other angles give us nice rational expressions like 1/2 or √3/2, π/5 would force us to deal with the golden ratio's ugly cousin - messy irrational numbers that would make your calculator cry. The teletubbies character swooping in represents the curriculum gods who decided some angles just aren't worth the trauma. Your trig tables thank them for their mercy!