If you're alergic to dogs, don't go into a doggie shop.
To be successful in the amazing race, a team needs one member who can drive and one member who can navigate. The team of Hayden and Aaron meet this requirement. Unfortunately both of these people are Aaron, and he can't do both at the same time.
When stomping grapes, be sure not to clog your hole. (Making a moat also doesn't help.)
The physical aspect is not going to be a problem for Lori and Bolo (Bolo claims, just before Kris and Jon zip past them on the ascent).