The physician concludes that trampolines should be used only under professional supervision. This is because there were many trampoline-related injuries last year, which indicates that trampolines are dangerous.

The trampoline enthusiast concludes that professional supervision should not be required for trampoline use. This is because sales of home trampolines have increased a much faster pace than trampoline injuries have increased, and because trampolines would still pose a risk, even if used under professional supervision.

We’re looking for a point of disagreement. The speakers disagree about whether trampoline use should require professional supervision. The physician thinks it should. The enthusiast thinks it shouldn’t. (That’s what the enthusiast means by “I disagree.”)