What did Jasper do that made Live Peeking feel angry?

They passed by Jasper, Jr., and Bull on their way back to the trailer. Jasper hurled some insulting names their way. Lice stopped and confronted Jasper who was obviously terrified. He told him he wasn't calling him names, he meant them for Noah. Lice told Jasper he sounded like his father. He warned Jasper not to call his friend, Noah, any names either. He shoved Jasper over just to make his point.