Really??

As in all labs, our lab has a lot of equipment that is shared, and for a few heavily-used items we keep a sign up sheet and designate specific time blocks for equipment usage. I had an experiment running this morning that I wanted to continue into the afternoon, but there was a peer signed up for the equipment after me. Hoping to gain some extra time, I asked him if he intended to use his time. (It's not uncommon for people to skip out on their time and not inform the rest of the lab, as they should.) "Sorry," he said to me, "I will be." So, I stopped my experiment and cleaned up all my stuff. It's now 45 minutes into his time slot and he is still sitting NEXT TO ME at his desk, reading online gossip columns. Really???