Mouse Treadmill: Funny Birthday Card

Pet-oton? Hey, when you're expected to run around inside a maze finding cheese on a regular basis, you need to stay in shape to stay on the course. Like the cartoon mouse pictured on this hilarious Birthday card working-out on a treadmill while staring at a maze up on the big-screen. Anyone who's ever held a job and/or ever done any exercising will be able to relate to the humorous image and hysterically punny punchline featured on this laugh-generating birth anniversary joke greeting.