167 Hi Sunghee, from what I’m reading you are doing a great job with both of your puppies. Puppies during play figure out what is and isn’t acceptable behaviour. Both of them seem to be playing appropriate by role-reversing and ending the play when one of them yelped. Rough playing works best when the two are friends that may not have been appropriate between dogs that don’t know each other. I would take the opportunity here to work on a reliable “come” to called them for brief play pauses too.
