katy-yorkie,
Apparently you don't have an appropriate area, where there are Squirrels and you're able to unleash your two Varminteers.
What you might do is, if you have a Doggy Park close. You could take some Bread with you, drop it down by the Trees, back away a reasonable distance, and when the Squirrels come down to grab the Bread, turn your guys loose.
They'll LOVE the chase, and it's not too likely that they will catch the Squirrels. If it's too close for you, back away a little more where you're comfortable there won't be any contact.
You'll have to call your guys back to you, to "reset" the event.
PS: Take plenty of Bread, Southeast Texas Squirrels are FAST !
