A question I've often pondered whilst sitting in the bath myself :) However, the best I've ever come up with is that your nose is closer to the 'flatus' when it enters the air so's more concentrated. If you've got the guts and your willing to use them ;) you could try smelling at various distances, just to see....
they eat more food than humans.
If you have ever smelled laundry bleach, or been in a swimming pool and noticed a smell to the water- that is the smell of chlorine (in a fairly mild form). Pure chlorine gas is pale green, has a choking, burning smell, and is deadly to breathe. Whether it is "worse" than the smell of wastewater would depend on the purity of the chlorine you smell- the more pure, the worse the smell.
Yes, because mice they have a keen sense of smell and will start to smell "human" around it or, worse, the smell of "death" because of the dead mice that came before them.
Yes, sometimes it could smell just as bad as a human fart (or sometimes worse).
no pigs smell worse.
no they smell worse
You probably have water seeping into the walls that creates mold.
Armpit hair is an odor sponge hence armpits smell worse with hair,
Yes, but weekly water changes help alot. They have a musty-dirt-like smell. Heat lamps make it worse but are necessary for digestion.
They are worse above water because it takes effect to people. Waves can wash the human race right out with one huge powerful hit.
Worse then Riley
Used up all the water.