100 word challenge

I was walking to school when i saw a fire engine outside a house.  i recognised the family. I saw a boy who i  was playing online with last night . He had stopped playing with me because i took the batteries out of the smoke alarm to put in my controller. It looked to me like they have been saved by their smoke alarm. As soon as i got home i pressed the test button, and of course it did not  work, but when i put the batteries in it we were safe and i knew i would never do it again.