One night I went into my Mom's bedroom and it smelled kinda funny--like my grandma's house. I asked my Mom about it and she followed me back into her room. My mom is quite a clutz, and it was at night, and the light wasn't on, so I told my Mom to wait in the hallway while I went in and turned on the light (the light switch was on the other side of the room--stupid architect!).
I was stumbling around the room trying to find the switch and finally turned it on. When the room was filled with light, we both took a big sniff at the same time.
I said, "Good thing I found the light, otherwise we would have never been able to smell the air."
My mom nodded, and it wasn't untill about thirty seconds later she was rolling on the floor with laughter.
Later that night, her boyfriend took out a pipe to smoke. I wasn't very fond of pipe smoke, so I said, "Hmmm, Ron's going to smoke a pipe. We should turn off the light so the smell won't bother us."
Again, there was the thirty second pause before the rolling on the floor.
It turns out that the smell was the fabric softener.