SO I had a squeeze bottle of grape jelly in the fridge, with "Xenon" written on it....

I made a toasted english muffin one morning, reached into the fridge, grabbed the bottle of grape jelly, and put it on my english muffin.

I then opened the fridge to put it back, and saw ... on the second shelf down ... a nice bottle of jelly with "Xenon" written on it ... looked at the bottle in my hand, that had NO writing on it ... and said "DOH!"