Hanging with Axel: Part 2 - S3-E5
Stupidity: Hassleberry and Jesse sneak around Axel to free Syrus from the tree whilst Axel is distracted with the duel. They are trying to be discreet whilst Axel is distracted, but Hassleberry shouts "Hey, Sarge. Open up a can of Neos on this guy" to Jaden, even though Axel would definitely hear this. (00:06:38)
Hanging with Axel: Part 2 - S3-E5
Stupidity: After Jaden summons Neos and Flare Scarab, he has Neos attack Axel directly. Axel uses the effect of his Firewall card to block the attack by removing a Pyro-type monster from his graveyard. After the attack is blocked, Jaden attacks directly with Flare Scarab, causing Axel to lose 1700 points because he couldn't block the attack. But if Jaden had attacked with Flare Scarab first and Neos second, Axel would have lost 2500 points from Neos' attack, instead of 1700 points from Scarab's attack. (00:08:30)