My daughter, then 3, was playing quietly in the living room. I was between the basement and first floor doing laundry. Husband and then infant daughter were still in bed. When I came up from changing a load out, I saw the pantry door open...strange...
My husband had painted wooden letters for each of the kids rooms and instead of putting the paints away, had stowed them in the pantry for me to store later.
Ugh. Yup, paints were gone and the back of my couch and my red living room walls and two pictures now had yellow, blue & purple "fingerpaint" spread all over them.
I called my daughter. "What did you do?" I asked. "Um, nothing mommy!" was the small voice from upstairs. I followed a trail of blue paint from my landing up the stairs to the hallway with it's green fingerpaint and into my daughter's bedroom. She had gone wild on the wall behind her bed!

Pink, purple, green, blue and yellow - all over! When she heard me discover the mess in the living room she tried to "hide" the stuff on her table - which was now covered with spilled paint.
As I'm trying to keep my cool...it's just paint...don't freak out on her

...the baby starts fussing. I step into her room and her table lamp has yellow paint splattered on it. Her crib had some speckles of purple and...my daughter had a completely PURPLE face. Yep, eyelids and everything!

She smiled and laughed at me, but I couldn't help it, I blew. I whirled around and yelled at my 3 year old "YOU PAINTED YOUR SISTER???!!!"
That's what woke my husband up!
In the end the paint washed/scraped off of nearly everything - there's still some spots on the carpet behind my daughter's bed. We repainted my daughter's bedroom. She had been wanting pink but we painted it purple - couldn't give her pink after that little stunt. The family room got the last coat of red it needed (if you've never painted a room red trust me, you need multiple coats) and we got rid of our worn out old furniture a couple of months later and replaced it with leather.