Personally I don't really care if anyone comes to an event or not. My patients know I did something for them and it allows me to call people I haven't heard from in a while which can lead to an appointment. What I do care about is the people I do the event with. I had asked them to bring people so that their clients could also take advantage of the festivities. However that never seems to happen. I've done enough of these that I know how to get the most from them.
While I enjoy hikes, the day after always sucks. I have flat feet and it's why people like myself aren't in the military. We can do the hike, but it's the next day that you really see the reason why. OMG my shins hurt in weird areas. I think that's what makes it so bad. It's muscle pain that I never feel any other time.