what did your garage door opener look like when you were a kid? mine was black with a big white button. when i'd play with it far from home, i'd get worried that i accidentally opened a nearby garage door or, even worse, our garage door at home. so i'd always push it an even number of times to ensure the door was closed. but then i'd still worry that maybe i accidentally pushed it once without noticing or maybe it didn't work one of the times i pushed it because i knew sometimes you had to push it more than once to get the door to open. there was a lot of worrying when i was a kid.