The mathematical innocence versus the geometrical horror! When a math enthusiast meets someone who skipped the whole "triangle inequality theorem" day in school and just eyeballs shapes instead.
For those who forgot: not every set of 3 lines can form a triangle - the sum of the lengths of any two sides must be greater than the length of the third side. But this guy? He's got a "soundproof basement" full of "triangles" that probably violate every mathematical principle known to humanity.
The real horror isn't the basement - it's the mathematical crimes being committed down there!