My wife is on her way back from her village in Sisaket at the moment after spending a week visiting her dad while I stayed at our home in Phuket. I haven't been to the village for several years because my father-in-law was staying in Phuket, but now that he has returned to the village my wife goes twice a year and I will go every 2 years.
Here are a few suggestions for things to do in the village.
1) Arrange to have screens installed on the windows at the family home before you go. It's not expensive at all. Then you can leave all the windows wide open day and night and not be eaten alive. You may want to buy a couple extra fans, too.
2) Consider sleeping at a nearby resort and going to the farm during the day. If you're near Khun Han I recommend Rerawardi Resort. It's owned by a German/Thai couple.
They have a nice restaurant, good pool, and bake fresh bread every day. You will find a number of English speakers, mainly German and Scandanavian, at the bar in the evenings.
3) Treat a group of kids from the village to a visit to a public swimming pool. I was treated like a rock star when I did that. The kids were so excited and had a wonderful time.
4) Samrong Kiat Waterfall is worth a visit if you're near Khun Han.
5) Kantharalak has a couple decent bars if you're in that area.
6) Taking the Golden to a vet and having him neutered won't change his personality but may reduce his urge to hump everything.
Hope you have an enjoyable stay.