My Clothes Stand Has Legs Not Wheel

I always help my mother to hang our clothes when I'm free. Actually I don't like to do it, but, due to my mother's hot spring, I do it.XP. And something funny happened on my dear hanger: It will run away. How it runs? And my mother always put a flower pot in front of our door. Why? Let's read the story first.

One day, my mother pushed the hanger out from our house, not to far, just near our door and at the roadside only. And, there is a slope in front of our door, it crescendos from the left to the right. Later, when my mother went out again to keep the clothes, she saw an bombastic incident!!! Guess what? The hanger disappeared!!! When my mother calm down, she started to find the hanger. She found it on the road. Attention, ON THE ROAD!!! Since that day, she put something to block the wheels, avoids it "run away" again. Then she chose something that I just know the truth today.

I just back from my lunch this afternoon, then my mother asked me to push the hanger out of the door. Then I do it. Then, my mother told me to carry out a flower pot. I asked her:

"Mom, why you tell me to take out a flower pot?"

"Oh... I want to prevent the hanger from sliding down the road."

"Mom... It ran away before?"

"Erm... Yes..."

After 1 second, I started to laugh. And can't stop. Finally my question had solved. I thought my mother want to let the flower to receive more sunlight. But the truth is: to prevent the hanger from sliding down the street! Aw, don't know why, I just keep going laugh and laugh, can't stop. My god, my hanger will run! Wakakaka......XD

Anyway, finally I know the truth. My question finally has an answer. 10:11pm now, fingers are really pain. See you next time!^^