"Worst Day at a Job" prompt

My worst job is babysitting my three boy cousins.  I have always been good with children but, I swear, these are not children, these are little demons.  I had to watch them once while they were at my grandma's house because my grandma can't handle them.  When I first got there the boys shot me with their nerf guns, which was was fine to start off with.  It progressively got worse, though.  They started throwing my grandma's vases around and broke two of her glass ornaments.  Then, instead of eating their chicken nuggets, they used the nuggets in their sling shots they got for Christmas.  All this time my grandma had been working in the shed with her pigeons so I couldn't just run out there and get her because I was afraid the boys would get into even more trouble while I was gone.  All through the night the boys were kicking at the glass doors and throwing billiard's at each other.  Finally, by about eleven thirty I had gotten all three of them to go to sleep.  This had been the most exhausting/agonizing day of my life.