Horse running like crazy

Whenever I take one horse to work, 2nd one runs completely crazy and just keep running-running-running. The one taken outside doesn't seem to be care much. It happens with both of them, however paint is much worse, and she's ALL wet when I come back with qh (although qh was all wet too this week once). Is there anything I can do to stop that? Fresh hay doesn't seem to help much at this point to keep the horse occupied. :(

Some horses are just crazy like that. I worked with a horse like that, but she was so bad that no one but I could ride her. She was eventually sent to slaughter.

They only run when one of them is taken out? Maybe it's separation anxiety?

Adding another horse to the bunch would help. That way there would at least be two horses to keep eachother company while the other is being worked.

Is there any chance you can work them at the same time? Since you did say that they don't seem to care when they are taken out.

Adding another horse is not an option, unfortunately. I was thinking about it, but no space/resources for the 3rd one (I have rather small property). :( It may be separation anxiety, that's my guess as well, but is it going to go away or not with time? BTW, same was happening at previous farm, where there were 4 of them (just not AS bad). It's weird in way that when I bring other horse back, the one in field try to go out from the field. If it's paint I'm brining back, the qh wants to kick her butt (so I usually back her away pretty aggressively).

Appy, how they can be worked out together? I assume should be another person around at least.. :) Or there are other ways to deal with it?

Delete, I don't quite understand how running in field is related to only one person can ride the horse to sending to slaughter?

Yes, kitten_Val, you'd need another person to work with the other horse.
It's really more or less that they're herd bound, but I guess only when left alone. It seems when you bring them out to work, they know that they're working.
Do you have toys and stuff in the paddock with them?

To be honest, i'm not really sure what to do, because the horse you are working for is fine, and it's the one you leave that has the problems.

Appy, they don't have any toys. I tried it while back (not for this purpose, but in general to keep them occupied), but it didn' work - no attention to anything (but trees gr-r-r-r!). They are little more quiet if one of my parents in paddock, but it's still an issue. :( I plan on taking them on trails later in year, and can imagine what a nightmare it'll be...

Do you have resources to bring in a buddy other than another horse? Maybe a small donkey? Goats are great companions and cheap, but hard to keep in a fence (need chain link). Some horses have made great friends with roosters.

You may give a try to walk away with your horse you are riding on so far that the other one cannot see you. Maybe it will be better.

When we ride off either on the horses or with them in the trailer the babys all go nuts. Happens every time. We just leave and don't worry about it. Sometimes they settle down, other times they keep calling for an hour. If we leave in the trailer we will just get in sight of our place and see them standing quietly at the bale and as soon as we pull in the drive they go goofy again Just make sure there your fences are secure and there is nothing they can get hurt on while your gone.