I think they've had enough exercise for tonight.
5 seconds sound clip from the Beetlejuice movie soundboard.
You can hear this line at 01:19:46 in the Blu-ray version of the movie.
Quote context
[...]
- Come on, a little closer. Step right up. Test your strength.
- That is why I won't do two shows a night anymore, babe. I won't. I won't do them.
- Well, what have we got here tonight, kids?
- Well, we've got the, uh, Maitlands.
- I think they've had enough exercise for tonight.
- Not so fast, Round Boy. We're gonna have some laughs.
- Mom, Dad: I just want you two to know you're welcome in our house anytime you want to come over.
[...]