First time mine started lightning it kinda startled me. I had walked downstairs in the middle of the night to get something to eat...woke up hungry, and the whole downstairs was dark. I come stumbling down the stairs half asleep and as I round the corner the thing starts flashing at the end of the hallway and I thought...what the heck is someone in my house taking pictures? Took me a second to realize what was happening and then I ate my cereal and watched the tank.