I'm Stayin' Out of the Bathroom at Work

Okay. I was so worried about going back to work today. Friday something embarrassing happened. To me- not Dude this time.
Well there is a bathroom right around the corner from my classroom for staff. Well I don't think you should use bathrooms at work to do nothing pass number one. I know we all eat lunch and whatever but do those things at home. The staff bathroom is basically a closet and there are no windows. Anywho... near the beginning of school, sometime late August, I went to use the bathroom and was immediately hit by a smell. Someone had snuck a dunk! Well I needed to go bad and get back to my room, so I held my breath a few times, did what I needed to do (the basics), quickly washed my hands and got out of there.
Well when I went out, in a hurry and out of breath from holding my breath, there was another teacher. She gave me a quick smile and went right in. I had no time to tell her my side of the story or anything. I didn't know what to do. I needed her to know it was not me that left that smell. I just went on to my room. Never cleared it up and just hoped she let it go- no pun intended.
Well fast forward to October now. I had surgery about a month ago and had to get three incisions. One was right on my bikini line. Well with two huge babies (son was 9 lbs. 11 ounces), metabolism slowing down, and just getting older, I have to work with my tummy to see that particular cut. It had been feeling a little uncomfortable again so I wanted to check it. My hall was pretty much empty Friday- many of the classes were on a field trip, so I just figured I would just dart in and out of the bathroom to check. I didn't lock the door because as I said, I planned to be in and out.
Well... well... well, as soon as I "adjusted" my tummy to check the cut, someone turns the door and opens it. She could- dummy me didn't lock it. Can you just imagine what she thought walking in on me in that position? She said sorry and left. My chin was to my chest and she caught me off guard so I'm not even sure who it was. So all day today I was giving people the stingy caterpillar eyebrows when they spoke.