Roger has a weird personality. He doesn't seem to pay hardly any attention to his surroundings. For example, in Open Season 2, he was first seen resting on the middle of the road while Fifi's owner calls him a dumb cat and yells at him to get out of the road. Afterwards, Roger listens to Fifi's tale with the other pets, only to randomly say he wants a girlfriend.
In Open Season 3, when the group of dogs and cats are on a bridge over the highway, Roger is unaware of what the others are doing and randomly knocks all the others off the bridge (along with himself) while yelling out, "Group hug!".