They were not very nice to their uncle and mistreated him badly. Seymour would make fun of his intentions and Tabitha would kick him in the shin. When he finally told them off for their behavior, they were very upset. They tried torturing him as payback, but Tabitha realized that all the flaws that he had pointed out were true and felt bad for hurting her uncle, convincing Seymour to feel the same way. Soon, they met Freddie and cheered up, adopting him in the process despite his looks. This made it possible for them to change for the better.
- Seymour and Tabitha look relatively similar to Wednesday and Pugsley from The Addams Family.