Bill- Why do you say that?
John- I see tons of Asians coming in and out of there all the time and I've looked in and seen beds all over the place.
Bill- Yeah well they probably have more room than their house in Asia.
Hyperventilation can more often be observed in children or people who tend to react a bit child-like (just to these specific things). Nevertheless, using the expression "hives" doesn't necessarily mean that they *actually* hyperventilate, only that they're overly excited.
Oh, don't be too bothered by all the enthusiasm. Frances always gets the hives when she has the opportunity to spend some time with the horses.