I'm not a fan. I get the overall measage (acceptance / anti-bullying etc) - but how much potty humor is needed? It's too much. Kiddos can't even focus on the story and grasp the main concept because they are too distracted by the unnecessary / ad nauseam potty humor. Definitely wearing out its welcome; disappointing that the school assigned this for a 3rd grade pass/fail test for end-of-year evaluation.
And +1 to the previous poster; the grammar is awful. You would think an author could conjugate verbs correctly :/