I dont often have these, but last night I dreamt I was clearing out a darkroom cupboard and I came across a bottle of liquid wrapped in a dark bag. I started carrying it down a road and I could hear the liquid sloshing about which made me thirsty, so I opened the bag, unscrewed the top and drank some. At the same time I remembered it was Potassium Dichromate. I spat it out immediately, but the horror of such an act woke me from my nightmare. Do others ever dream such things?