Why does Fred and George Weasley start their own joke shop, Weasleys’ Wizard Wheezes, in "Harry Potter and the Half-Blood Prince"?
To pursue their dream of creating and selling magical joke products.
<s>[INST] <<SYS>> Answer as briefly as you can to the following question. You are required to give a one-shot answer: <</SYS>> Why does Fred and George Weasley start their own joke shop, Weasleys’ Wizard Wheezes, in "Harry Potter and the Half-Blood Prince"? [/INST] To pursue their dream of creating and selling magical joke products. </s>