Firstly, Jack Russells are pretty much the criminal ringleaders of the dog world. (1/16) List item Submitted to "15 Reasons Why You Should Never Own Jack Russells" Approved by Karen Flores MoreReport Item navigation Previous submission Next submission View full list See more Previous article They’re a huge problem, because they steal everything: your socks, your whole heart, etc. (1/16) Next article They can often be spotted in scary gangs… (1/16)