This Can't Be Right...

On the first day of school this semester I went looking for my first class. It said it was in room number 121. I looked everywhere but still couldn't find it. Finally I found room 121. It was the women's bathroom. I stared at the door extremely confused. Why would they put the women's bathroom as where my class is? Is this a joke the school is playing on me specifically? This was all so odd. I opened the door and peeked in and sure enough it was the bathroom. I closed the door and stood there a second just staring at it. I looked back down at my paper and realized I was in the wrong building.