I agree as long as tails are wagging.
When Joels cousin Milo a JRT comes over they get crazy and get pretty rough but they both let eachother know if its too rough. Joel is the only one doing the bothering, lol also my brother said that Milo is way rougher with other dogs, I think it's cute that Milo knows to be gentler with Joel
I rarely have to intervine and when I do its bc of Joel, hehe