I started a new job last week. I'm enjoying it so far, but an embarrassing moment happened today. It'll be fucking hilarious to think about in the future; however, I need advice on how to handle the awkwardness in the present.

We have one bathroom in our office. It has a handle lock. Today, I was in there taking a piss, when a female coworker walked in on me. She immediately apologized and backed out. Awkward for sure. However, I know that I locked the handle because after I finished, I checked and it was still locked. Maybe it is broken from the outside, or the door wasn't closed all the way. IDK.

The coworker who walked in on me is the HR Manager, so it would be weird to talk to her about it lol. Personally, I legitimately don't care about this situation and don't want to fuss about it anyways. It's an accident, I get it. On a surface level, though, I want to prevent tension or awkwardness from arising because of this situation.

As I was leaving work today, we crossed paths. She had a slight grin but just said, "Have a good rest of your day" and I returned that pleasantry. It's all good in my mind, I'm just nervous about her causing some rift. Advice?