We know that some of the matter generated on a Holodeck can actually leave the Holodeck's confines. For example, you can spill "holodeck" water on someone and they will be wet outside.
But what happens when this happens in reverse? If someone brings some liquid INTO a Holodeck? What happens to it?
More specifically, if someone leaves some bodily fluids (e.g. gets a cut and their blood spills, or gets so drunk at the bar that they throw up), what happens to those bodily fluids?
Are they somehow processed/disposed of/transported away by the Holodeck?
Do they just hang around and fall to the floor once the holoprogram finishes?
Other?