The alan parsons project the turn of a friendly card shirt

My eldest son was about 2 had an imaginary friend. BB was orange, the size of a large apple and covered in The alan parsons project the turn of a friendly card shirt. BB was cool. Occasionally my son would yell at him to be nice but overall he was good. One day in the car my son yelled “THAT’S IT!” and put his window down, threw something out and calmly put his window back up. When we asked what happened he says very bluntly that he threw BB out the window and was now dead. We asked about BB in the weeks after and he always said BB was dead. Son is now 10 and still remembers BB. He says BB was a dick and deserved it but can’t remember why.