a public service announcement...or warning!

There is an experience that Zack and I had last week in a park called Memory Grove. It was a beautiful Sunday morning with tons of people out enjoying their day. Zack and I decided to walk the trail home for a little exercise. This trails winds through the park and drops you out right at the avenues in SLC.
I am just walking behind Zack enjoying the view...of nature is what I mean here, when Zack abruptly stops. I am kind of poking at him and he turns with this total frightened look on his face. Mind you there is a river rushing right near the trail so it is pretty loud but Zack is not trying to say a word. He just points and I peek my head around him to see what is going on...my eyes focus directly on two men approximately five feet off the trail. The actions that are going on take me a minute to register...but I finally get the gist. There is a beautiful man doing an old man in the butt...right in front of us!
Zack and I could have sat and watched the show because they didn't even hear us coming. Zack mouths "What do we do?" And I kind of push him and say, "Just keep going." This is when the men notice us...I watch as the one man just slowly places the other man next to him. Zack and I rush past them on the trail and continue without speaking for about 10 minutes. Both of us are just trying to analyze what happened..the setting was so unusual, it was almost like a written porn script and we were the naive virgins that walked in on it. Not sure whether that means we were suppose to join in at that point or not? They looked like they didn't need any company though so we were apparently not written into this script!
This is the thing...I don't care about anyone's sexually preference or the escapades they decide to try hell I may even want to get down with my husband sometime in public. However, it was noon on a Sunday and there were about a hundred families there! Or maybe they could have gone up the trail a bit to be not so exposed...I don't know I guess I just needed to write this down as a little piece of advice or something for the peeps out there that are daring enough to do it in public.
Or this could also be a warning to the peeps that nonchalantly come up on something like this...just be advised and keep your eyes peeled for the things that don't seem to fit in the context of the place.
Good luck in your endeavers!