I use timeouts, but not 2 minutes for a 22 month old. I have a little boy who is 23 months old, not aggressive, but he hurts the others because he is just so tall and strong. This is the second little boy I've had in care like this so I know that this type of child just doesn't realize their own strength and has to be taught to be gentle, so hugs for his friend after about 30 seconds sitting out with me repeating a few times in a stern voice what he did wrong is working.

If the child in your care is having personal space problems, way to go playfelt, then I hope that solves the problem.