What would be an unmistakable sign to a space shuttle crew that a zero-gravity toilet had malfunctioned?

Question

What would be an unmistakable sign to a space shuttle crew that a zero-gravity toilet had malfunctioned?

Answer 1

When an astronaut opens his Baby Ruth and he has two floating in front of him.

Answer 2

p**p splats on the walls

they pull over to the side of the ride and get out to pee in the bushes

after touchdown, they look green and run like mad to the control room limping as they do

After docking with the space station, the first words they say are "excuse me, where are the public restrooms"

Answer 3

A t**d floats by their head!

Answer 4

When an unmistaken brown missle floats around bouncing off the monitors and walls.