Went into San Jose for an appointment and took the light rail as I always do - cheap and easier than finding parking. Got off at the wrong station- it's just one station away from where I was going and I often get off there to go to the library. So I chalked it up to an honest mistake. When I was done I hopped on the wrong train home - I wanted a Winchester train and got on the Alum Rock train. Didn't realize for 3 stops then it occurred to me that none of the stations sounded familiar. Backtracking now but I think I'm going to avoid anything that requires deep thought or crucial decisions today.