According to Jim Episode 2.18 Wonder Woman

Cheryl is mugged at the mall parking lot, but instead of calling the police she chases the guy and tackles him to get her purse bag. When she tells Jim what happened, he decides to get two killer German shepherd to guard her. Cheryl doesn't like the idea, especially because the dogs are trained in German. One night, when the girls and Kyle are sleeping over at Dana's, Jim and Cheryl get locked into the bathroom after they mistakenly order the dogs to attack them and don't know how to order them to stop. The solution? Give the dogs drowsy medication. After that, Jim and Cheryl acknowledge that they could actually lose each other and start being warmer with one another.