The Unwelcome Houseguest

Buddy and his wife can't take their German Shepherd, Larry, with them on a three-day weekend. Buddy wants Rob to keep Larry for the weekend, but Rob refuses because he hasn't talked it over with Laura. The next time we see Rob, he's trying to sneak Larry into the house. Ritchie is afraid because he thinks that Larry is a wolf and Laura can't sleep because Larry is crying. What is Rob to do?