A good sense of humor is the only way to make it through long days of hard work, I totally agree. I am sorry the land owner is not more understanding with you, often those who have never worked long days with their hands don't have a sympathy for those that do this work.
I have been a laborer and farm worker all of my life before coming to Cambodia, so I know your struggle. Here in Cambodia I had to change my life because laboring wasn't going to cover my yearly visa and work permit expenses as a foreigner. I feel lucky to have become a teacher, but those days are behind me now, and I am laboring again like in my past, but this time on my own land, so the feeling is much better even if there is no paycheck at the end of the day 😉.
Stay strong and safe bro, and use your palm oil yoga harvesting technique to stay limber and young forever 😁.