You know rereading this series it really pisses me off that Kenchi always wants people to respect his resolve for Martial arts but doesn't respect of his friends in return, this is the straw that broke the Camels back for me
http://mangafox.me/manga/history_s_strongest_disciple_kenichi/v49/c496/10.html
he'd have been pissed if someone interfered with his fight and shit on his resolve but it's apparently fine to do it to Takeda, and he does this numerous other times throughout the series where he acts like he's the only one who should fight anyone, the whole arc where the masters were on the run and shinpaku alliance teamed up had me hoping those days were over but alas