Sink or Swim
S6:E8It's no secret that Urkel is deathly afraid of the water and his heart sinks when he learns that he can't graduate from high school unless he can pass a pass a swimming test, so he asks Carl for lessons.
It's no secret that Urkel is deathly afraid of the water and his heart sinks when he learns that he can't graduate from high school unless he can pass a pass a swimming test, so he asks Carl for lessons.