I have a 13 year old Yorkie who I am guessing got bit in the face while trying to kill a rat. It is under his left eye & I found it after it swelled his face up. I ended up popping the darn thing & I clean the wound daily. It is healing nicely & I am happy he is doing well. The rats are from my neighbors wood pile. My dogs have killed them before & now I have my war paint on! I am going by PetCo tomorrow & asking for their ferret litter to put around the wood pile. I haave some traps too. Darn pests! The coons got my garbage last night. I thought I woke to chicken noises. For them I will use my gun! My neighbor too. We will be vigilant & prevail!