Last Christmas my older brother came to visit from out-of-state. EL D mostly tolerated him (I had my brother give him treats), until a day or two in his stay, when EL D nipped at his ankle - I think my brother must have made a quick move and we both thought EL D was just spooked. But then he took at him when he came out of the bedroom or up from the basement and once while my brother was sitting on the couch with his feet out, EL D actually nipped him hard enough to leave a bruise.
I contacted the breeder and she thought EL D just didn't like my brother. But since I've noticed that EL D nips whenever someone moves too quickly. It's always males he does this to so I figured there must have been something happened with the previous owner. Another brother has been over enough times and petted and played with EL D so he now feels comfortable with this brother.
My problem, I don't have many male visitors to help socialize better, and Christmas is coming soon along with my older brother's annual visit. What can I do to keep EL D from nipping. There's really no warning - no hackles raised, no growling.
If both my brother and I used a squirt bottleon him do you think that would help control these urges (I also don't want EL D to associate getting squirted just with my brother)? Any other ideas to try before my brother comes?