I have a severe personality disorder.
My identity matrix somehow has twos, threes, sixes and even some irrational and imaginary numbers in it for good measure.
Besides, everytime I try to look it up, it's completely different from what it was last time.
I have tried issuing warranty and refund claims on my existence, but I wasn't successful.
Never have been.
I'm pretty sure if you did a dissimilarity matrix of me and myself at any given time in my life, at least soms of the numbers on the diagonal would be greater than zero.
I'm generally a normal man, I once checked the matrix of myself based of an orthonormal base and found out that I'm fully positive. Im happy ever since.