cherished chimpanzee maneuver , which also involved ... dani : squeezing his testicles in a banana vice ... mathew : ... and yodeling in as high pitched a voice as possible ... dani : ... stopped in his tracks when the guests noticed ... mathew : ... that there was now a palpable change in odor ... dani : ... and an oily viscosity to the water , mathew : ... accompanied by a faintly noxious cloud of green .