Look, a distraction!

Right, I'm going by memory but if it was someone else working with it, then it was because his perception was speeding up at that time. I seem to recall him ripping arpart a milk carton though because it wasn't pouring. In that case it's an issue of applying force to the milk that drives it to similar speeds that he's experiencing(stupid-fast) and slowly having that energy bleed off as he waits for gravity to do its usual job. Which it can't at those speeds. Thus the milk slows as his application of force bleeds off. Neither will toast cook in a toaster, as that requires everything around him to be working at the higher speed.