Way beyond funny

This happened again last night. 7:30 just before Steven came home.
For anyone counting, that's once every other evening this week. Twice with these lights, including one time with the chandelier doing a "now I'm on, now I'm off thing" as well, and once with these lights. Each time we have to turn off the electricity at the panel to switch these lights off.
Now, is it just coincidence that this has happened twice just as Steven was arriving home? And it happened once while I was out. Could it be connected in some way to the garage openers? But we use them continually during the day so why just in the evening? Could it be connected to some ancient x10 automatic security light on a timer? But why has it just started this week? And why every other night? And why won't the lights turn on and off at the switches?
Am I obsessing about this? Am I crazy yet? How much more can I take?