The Chain Of Screaming - S3-E15
Continuity mistake: The ice cream Robin's eating in Ted's car keeps changing shapes between shots.
The Chain Of Screaming - S3-E15
Continuity mistake: When they're all sitting in the car listening to Marshall's story, Robin's ice cream changes between shots.
Answer: After running the marathon for Marshall with no training, he's allowed to ride the subway for free. While sat on the train, the muscles in his legs start to seize up after the marathon to the point it is painful to move his legs. This is why he can't move them. It's the same reason your body aches after a good session at the gym the day before.
Ssiscool ★