That shredder must have been activated by Remote Control and powered by a long, long lasting battery.
A. Someone at the auction must have passed the word of the sale.
B. The shredder frame may have been put on later, by an associate.
C. This looks like something Yoko Ono would do.
I recall she once had an Art Show June 2012 in London. The show featured three identical piles of DIRT. The exhibit was named; “Country A, Country B, Country C.”
Some critics called the work ‘fabulous!. Others called it
‘groundbreaking!’.