If you could get your case full of Liquid Helium, your case, and the system would be 1.7K.
I'm picturing a movie scene where someone opens up the containment cage that would be needed to house such a beast, and it flash freezing their entire body, while a breach in containment would also cause the helium to expand explosively. Afterwards an investigation team is walking around the scene trying to figure out what happened. They are all conversing with really high pitched voices.
you can't make it under normal means. you would need to put under extreme pressure for it to condense to liquid. of course cause Helium is inert and exists naturally as a gas.