<human>: Give me a shortened version of the text

So today I decided to ride my bicycle to a thrift store and I found this cool leather jacket(that was probably fake) and a black motorcycle helmet for just $5 So I bought them. When I rode my bike home I remembered that my mom asked me to put the X-mas decorations away so when I got home I went immediately to the basement to get the boxes and not going to the front door to show my family what I got.  My grandmother must have looked out the window and seen me go to the back door and didn't recognize me in my new leather jacket and super cool helmet
so she called the police, a few minutes later I hear a police car siren and I look like the most suspicious character ever so I run to the front door to go inside and ditch my jacket and helmet, and its locked then it dawned on me that my grandmother was the only one home and is the most paranoid person ever and she called the police so I just sit on the front steps as running would make everything worse so the police officer  drives up and I try to explain to him it was my paranoid grandma she and she probably didn't recognize me but he doesn't believe me and handcuffs me and puts me in his car then my grandmother comes out and realizes her mistake and tells him that I was her grandson and she mistook me for a thief the officer let me go called it back as a false alarm
<bot>: I bought a jacket and helmet a thrift store My grandma thought I was a thief and called the police but she came out and corrected her mistake so the officer called it back as a false alarm