Yes, a toad can hurt another toad. When a toad decided to another toad, it might attack a larger toad. It might get it's mouth around a part of it and try to eat it. That brake body part of the other...
A lizard
a freaky stupid toad is a tad pole b 4 its a freaky stupid toad
No
Yes but also, some toads actually do better in pairs, but yes they do have to be able to get along.