My wife calls me at work yesterday and wanted to know if I noticed our 3 month old black lab acting weird. She said he was really cowering when you reached for his head. I knew he was teething but I didnt think it would hurt him to the point she was talking about. Well we took him to the vet this morning and turns out the vet thinks a small Copper Head got him. The puncture marks were right on the lower gums. Weve got him on meds for it right now but it sure has been quite a scary ordeal. If it would have been a bigger snake, he probably wouldnt have made it. Those silly dogs are just like out kids. Take care guys