This post interested me alot.
Are you sure that the worms got out from the liver and werent just in your colon the whole time, angry because of the coffee?
I have worms in my liver, I did a coffee enema (I think it was maybe not successfull..but I did get brainfog afterwards), did not hear any squirting from the liver, and did not chase any worms out.
But, if coffee enemas do CHASE out WORMS, I say eureka!