I use to work as a mainframe operator at a telecommunications company. We were responsible for all software and hardware issues. I received a call from an Operator in our customer service group. She stated that the keyboard to her terminal did not work. I had her try the usual things (was the hold button on?). When none of my instructions cleared the problem, I told her I would be over with a new keyboard. When I got there, I reached behind the monitor and unplugged the keyboard. When I picked it up and brought it to my chest to pull the cord from behind the monitor, I felt something wet on my chest. When I looked down there was a large brown wet spot on my white dress shirt. When I looked at the operator, she shrugged and said 'I forgot to tell you that I dumped my coffee into my keyboard.