Two of them...
One is, after eating a LOT of Sugar Pops (the cereal), you eventually have to take a piss. Unlike normal piss, it actually smells pretty wonderful.
The other...involves two smells. It's a smell you get at many concerts, and even though I really don't do it anymore...it brings back great memories. Of course, then there's the spillage of bong water that brings nastiness to mind.
