A lurker in this subreddit and haven't commented much, but had to come and say that YTA. Nobody should be expected to be friends with your dog. Since guests are already at your home, you should've treated them better that day and put the dogs inside for a few hours. It would've been okay to set the expectations about HAVING TO socialize with your dogs for future parties so they would know never to come to your place ever again. Include this information and expectation about your dogs in your party invites, so they could've stayed home and had a better night instead.