"Mm, as far as I know, the Arkham stables are still empty, but I thought I overheard him talking with dad about stealing a horse from the park...I was busy programming Timmy at the time, so I wasn't really paying attention. If we see him riding down the street in a burlap mask we'll know."
"Speaking of, we need to get Jaq-Jaq and Confucius from dad soon."