No! by Tracey Corderoy, illustrated by Tim Warnes

From chapters.ca:
Everyone thinks Otto is adorable. "How cute!" they say. "Such a sweet child!" But then Otto learns the word no - and now he says it all the time! At first, it's fun to refuse to eat, take a bath, and go to bed. But when Otto's favorite word causes him to have a really bad day at school, Daddy has the perfect solution.

My Rhinoceros by Jon Agee

From chapters.ca:
Jon Agee's funniest picture book yet! If you should ever get a rhinoceros for a pet, you're in for a surprise. It won't chase a ball. Or a stick. Or a frisbee. In fact, according to the experts, a rhinoceros does only two things: pop balloons and poke holes in kites. But don't be discouraged. As you'll discover in Jon Agee's hilarious picture book, rhinoceroses can do more - so much more - than that!

Hippo! No, Rhino by Jeff Newman

From chapters.ca:
In the tradition of "Good Night, Gorilla," this hilarious and almost wordless story about a rhinoceros being mistaken for a hippopotamus is told in charming and humorous illustrations and dialogue.