My little sister and I were riding the elevator when a strange dog put its paws on my sister and started barking: we were horrified when we understood the reason

My little sister and I were riding the elevator when a strange dog put its paws on my sister and started barking: we were horrified when we understood the reason 

Almost five years have passed since that day. I’m now in college, but I still can’t forget that moment. And finally, I found the strength to tell you what happened back then.

It was a normal day. After school, my little sister and I were walking home together as usual. We live on the top floor of a high-rise, so naturally, we took the elevator. At that moment, we were chatting, laughing, sharing impressions of the day — everything was as usual.