Invasive species can enter a habit in many ways. how were these invasive species introduced?

A species of rats entered a habitat stowed away in a train -> unintentioal introduction

A man added invasive water hyacinths to beautify his private lake -> intentional introduction

A flood prompted many aquatic species to inhabit a new area -> loss of habitat

my hotdog is jiggly bruh no kap

he is very short, and he can only reach halfway up on the elevator buttons. but on a rainy day, he has his umbrella with him, and he uses it to poke the button at the top.