The Mysterious Figure in the Window

I could see my house from my elementary school's soccer field. One time during

recess, I thought I could see my mom in her bedroom window and I was waving at

her. It didn't quite look like her but who else could it possibly be?

I thought it was strange that she was home because both my parents were usually at

work when my siblings and I were in school. When I got home from school, I told my mom I

tried to wave at her during recess but she said she got home just a few minutes before

my siblings and I did. I just said "oh never mind, I'm just kidding."

But the more I think about it......there was some lady in my parent's bedroom window that was