Dollar Tree

I came in today, couldnt find a manger asked a short haired mixed female employee if I could have 1 empty box she was done with. It was to make my son a costume out of that has Autism, thats only 6 yrs old I eben told her. She was VERY rude and stated she couldn't give no box it has to go in trash. Thats just ridiculous! My son wanted to be Thomas the Train which no costumes could be found in store, so I was gonna make one. I came all the way back in after yesteday employee told me to come back today, they done broke down boxes for the evening.