Literally. Out of the 15 apartments on our side of the building over half of the residents smoke. We don't have air conditioning so then we're forced to decide: live with the heat, or live with the stink. Ick.
I used to think the worst kind of neighbor to have is a loud one who plays his/her base loudly and extra loudly on days you have migraines. Now... I know there are TWO worst kinds of neighbors to have.
I guess if we look on the bright side all of our neighbors are fairly quiet. Even with the windows open.