I had a captain (well known for being the big tool at my airline) who turned on the dome light for a two hour night flight so he could read his paper. Not the small reading light, but the massive, everything is daylight dome light. I was glad he was taking the landing, which he promptly crashed on the runway like all his landings so he could dissipate the energy and get to the gate a few seconds sooner which allowed him to pick up as much OT as possible.