I can only speak from a poultry perspective at the moment but even though I am living on our farm, I have tried, or am aspiring, to design all our poultry flocks, runs, coups, broodies etc. to be able to survive for 3 whole days without attention. Now that never happens, or hasn't yet but that is how I look at everything I do. If I was sick in bed and nobody found me for 3 days (unlikely as I have a wife and 3 boys), would anything die?
I find that in doing that, you feel less pressure. You can fill up the feeders and drinkers when you have the time and know that although you will probably be back in a few hours that if, for some reason, you weren't, the animals will have enough resources to get through until somebody thinks about checking on them.
I've also gone for 3 days because due to time, work and money constraints, our family is likely to only go away for the odd long camping weekend for the next few years at least and while I can get our lovely neighbours to check in on the chickens, I know that if for some reason they let me down, the birds will all still be alive when I return.
It's maybe a bit over the top but smelly things do occasionally hit fans.