Revealing mistake: When Joey sees his girl (again) in the water and rushes out to hug her (and she disappears again), there's a large brick home visible in the background, on their "deserted island." (00:13:35)
Misadventures in Baby-Sitting - S3-E14
Revealing mistake: The kid that D.J. Is babysitting gets his head stuck in the railing - the rail to the right is obviously a removable piece.
Answer: No.