My last cat (RB) drank from my glass next to my bed too. There is something about it. I think they like drinking where we drink. It is the same water - and even if I put the same glass next to their bowl of food, they still prefer having it away from their food. Go figure. Maybe in the wild, water and food were in different places. Who knows. My guys are to wild and wooley at night and often clear off everything on my nightstand, including my reading glasses and drinking glasses. Thus, I have learned my lesson with both....and leave the nightstand clear except for a lamp (even that is taking a beating).... I think they do the damage just to get my attention.