I'm having a similar issue with my 11 month old neutered male, Herschel, and my daughter's 5 month old intact male, Hopper. Hopper comes to visit some weekends and Herschel is so aggressive with him. With us he is the sweetest, most loving dog. He loves all people and wants to play with other...
Herschel is my 11 month old Frenchie. He weighs 22 lbs and is all muscle. My daughter's Frenchie pup is only 5 months and weighs around 12 lbs. . When Hopper was smaller we didn't let the puppies play together much. Now that Hopper is bigger, Herschel wants to play but seems to be too...