Sounds like it could be fun, now I just had a thought, but since I'm not really very good at the sciences, I thought I'd check it (yes, this does pertain to this by the way).
I know that matter cannot be destroyed, only changed, now, since this goo would be less dense than a human being, the area that he/she covered in goo form would be greater would it not? I'm having ideas of drowning people in goo...