It's kinda strange question, but... I know some people are going to the park this weekend. My problem though is the parking lot is all asphalt (unlike in other places where we have either grass or little crashed stone (like a soft one, not sure about the right name for it). I have stock trailer meaning she has to jump out (she ALWAYS goes head forward from trailer, I don't back her out). So my question is... Is it OK for the horse to unload on asphalt from step-up trailer? Wouldn't it to be too hard on her hoofs (she's barefoot)?