Hard On In The Gym Shower

Well today I was working out at a new gym. So after I had my workout I took a shower. This where communal showers with no dividers or anything. Im not used to that but I also dont have a problem with that. So the shower room was empty. And there it happens, while I was having my shower I started to get hard. First just semi. I tried to distract my thoughts while turning the shower heat down. But it wasnt really helping. Then there came someone out of the steamroom, he took a shower in the corner away from me. I actually started to get fully hard. At first I though, well just wait until it comes down. But I wanted to prevent the awkward moment when the other guy would notice my boner. So I walked out of the shower room past the dark doors from the steam mroom and sauna before I could grap my towel. Luckily there was no one in the changingroom so I could quickly put some boxers on. While being almost dressed the other guy from the showerroom comes to the lockers and starts having a chat with me while being but naked. At that moment I didnt know what to think, did he notice my boner?

I dont intend to make a problem from this but what should you do? Quickly get dressed or just keep showering even when others can notice your hard on?
Let them see. Shit happens. The man who sees it might not be the source of the boner. Fact