Seiki facepalms.
"For the last time, I didn't take it from you!" Seiki shouts angrily, "If you're going to keep this up, then no, I don't want your help!"
"If you're going to keep acting like we're the bad guys, then why would we want to join with you? You do nothing but harrass my brother over a Trap he found and get in our way while doing nothing but trying to get your precious Leonidas stronger." says Hoshi. "We've never come after you or your Bakugan, we've never done anything to you, you're the one who started the fight with us."
(You took as many Bakugan as you could from the lab, why couldn't Seiki have one? I just intended for him to find a Bakugan there, not for this mess to get started.)