Actually how would you get the acid and toxic into a closed space?
Hydrochloric acid dissolves most elements so LOGIC
YOU SHOULD NOT HAVE DONE THIS... ⛏⛏⛏⛏
Ah, but not all elements.
Also at this point it's impossible for you to make the universe last long enough for you to impale yourself that many times, even at 666 times per planck time.
Also I forgot, you may as well put radioactive feces in the vat for good measure.