Hello i wanted a bit of advice i have been taking my female gsd out with another gsd who is female and i have only just let my dog of lead the 1st time the dogs got on great but the 2nd time the older dog kept having a go at mine so my dog had a go back we parted them and put them both back on lead and they were fine then i cant understand it why they got a bit wild they know each other for along time no problems when mine was on lead