How to ruin someone's spa experience

Although, having wheat grass stuffed up your bum sounds like an experience worth ruining...

"We were in the sauna, and my friend and I were discussing the nutritional value of wheatgrass. We were trying to be quiet, and not disturb the other ladies in the sauna, but I think I hit a nerve with our nearest neighbor when I said that wheatgrass was at best a placebo.

"The woman piped in testily that it was not just a placebo, and that wheat-grass contains valuable chemicals found in no other food. I told her she should just go eat an orange."

Via Skepchick.