Judging by the video it didn't seem like there was to much limitation to the amount of water confined to one space, When he broke it it practically flooded the whole room. Ill look up the real physics of water to find out the realistic amount of water can be confined to one space without changing form.
Well i soon found out that you would need an insane amount of pressure to put it into its minimalist amount of space and potentially create a singularity that, and it seems silly even in science fiction.
Throw it like a grenade and hope to god that your friend did not hide his porn magazines in it. Extra: Since this is my 100th post, here is me falling down stairs.
When a block of water falls straight onto a block that has empty spaces on both sides it splits. Like this: -------- --------
Aw, I was sorta hoping... Maybe deep-sea isn't natural, and will have sentient blue-things that compress the water