2.
The person sitting next to you on the train.
3.
The dude who said "I farted".
5.
Your date's bad breath.
6.
Or his stinky armpits.
8.
Clothes, right before you go to the laundry.
9.
The water from the harbour.
12.
The fridge when you stock up leftovers.
13.
The rubbish bin before you empty it.
21.
Your garden when the sewage tank leaks.
22.
The toilet after your poop.
God, take a shower or something!