Is OTHER wrong in the post ? POST : I was meeting a couple of my girl friends for lunch at 1230 and planned to chill a bit at home after. I was going to a huge family dinner later which always starts at 6/630. 

My sister was informed of the dinner plan, the lunch plan and the stay over plan at least a couple of days before.

Fast forward, my friends were in the flat. Note that these were all girls and have met my sister a thousand times. It was 5ish, I went to her room to tell her that my friends were leaving soon, so were we. I found out that she was far from getting ready. I was a bit pissed because it usually takes her at least a good 45mins to get ready and another 45mins to get to the dinner place. I was sure that she would be late. The way she dealt with it was to ask me to go first so that I wouldn’t keep chasing behind her back. I did and I arrived on time. She ended up arriving at 715. 

When we revisited the issue that she was late later that night, she then revealed that she couldn’t get ready because there were strangers in the house. But all she needed to do was taking a shower. The walk between the toilet and her room was just 1s apart. She could do everything else in her room. It was not a big flat but my friends and I were just chatting in the living room. The toilet and her room located along the corridor which could hardly be seen from the living room. I couldn’t understand why having other female non family members would make the 1s walk so difficult. There is also another toilet further down the hallway, so occupancy shouldn’t be the issue. I think her thinking was really weird. I couldn’t get it. I understand that having strangers in the house could be uncomfortable. But I don’t think it could go thiiiiis comfortable that you would be an hour late to a 30 people dinner. 

TLDR: Sister was an hour late to a family dinner because she couldn’t get ready when my girl friends were in the house. 