It was a long time ago, I went into my neighbors house and they hand like a huge thing of some kind of cheese that smelt really bad.. it smelt soo bad I almost threw up . I couldn't even say in the house for a min, it was so bad. lol.
Mine is my friends uncle's room. Him and his girlfriend either need to change their bed sheets every once in a while or lay off the s/ex.
Or at leaste spray some febreez..