I have a fish story about automation.... this was a few years ago but it's still valid.
I used to breed fish in a big way while working full time. Growout fish eat a lot. So had to get up at 3:30am to feed fish which took an hour. Sleepy fish don't eat well so I put tank lights on a timer to wake them up 15 minutes before I entered the shed so they were already awake, active and waiting for me. Then off when the sun came up. There are about 160 tanks on racks so lots of lights. This worked well for several years until I went overseas to work which turned into a 5 year absence. Then I returned and started keeping fish again. Several years after that, I was returning home late when I suddenly noticed the fish shed lights come on at 3am. Turns out all these lights had been turning on for over 9 years without me knowing. ...
I used to breed fish in a big way while working full time. Growout fish eat a lot. So had to get up at 3:30am to feed fish which took an hour. Sleepy fish don't eat well so I put tank lights on a timer to wake them up 15 minutes before I entered the shed so they were already awake, active and waiting for me. Then off when the sun came up. There are about 160 tanks on racks so lots of lights. This worked well for several years until I went overseas to work which turned into a 5 year absence. Then I returned and started keeping fish again. Several years after that, I was returning home late when I suddenly noticed the fish shed lights come on at 3am. Turns out all these lights had been turning on for over 9 years without me knowing. ...