This mathematical travesty is the equivalent of watching someone confidently walk into a glass door. Starting with x/x = -1 (which is already wrong since x/x = 1 for any non-zero x), the proof proceeds through a series of seemingly logical steps to reach the absurd conclusion that 0/0 = -1.
The sneaky error lies in dividing both sides by x when x equals 0, which is mathematical blasphemy. It's like trying to divide a pizza among zero friends and somehow ending up with negative pizza. Mathematicians worldwide are collectively facepalming at this proof that would make even a calculator have an existential crisis.