Essay help plz!!?

I have to write a 5 paragraph essay on "Why I would Never have a pet cheetah" My three reasons are that they would be hard to take care of, hard to locate, and they are dangerous animals. I have different details for each one and subtopics under that but I need some help with the introduction of the paragraph. I know what to put as my thesis but I need help with the first sentence which should be the broad general statement and the following sentences before the acual thesis. Any ideas i rele would appreciate them