When you feel tired, a lot of work suffer. It is very easy to get carried away when you least expect it, and when you realize that you are stuck, it is often too late. It can be as simple as do not forget to take a walk astride power, never turn your back on a bull seems tame, cut with your knife away from you, things like that.
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The best way is to ensure your survival and to keep all your limbs intact is to always be aware of your surroundings, if and when you feel tired, never wear loose clothing around the engine running and show respect for all the news bulls and cows momma with their new calves.
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However, the bulls and the cows must be respected and often not reliable either, whether you are working or running a dairy farm or ranch. Dairy bulls are very dangerous and people never come back to you. Beef bulls can be just as bad: at first they may seem quite mild and Benin, but they can turn on you at the slightest provocation.