Zombie Dumb

While I haven't watched the entire series yet I thought I'd like it because this is a cute, funny cartoon especially with the spooky/goth theme it has, but there's one episode called "all I see is hana" and I may be overlooking it but the character finds a strange looking mushroom on the ground and eats it. He then proceeds to have a sort of trip, his eyes become swirly and purple. Honestly I think it's wrong that they added that in there, no kids show should have ANY type of drug usage in it. Just thought I'd let other parents know.