Had a best friend way back in the 70's - she was a real nut, said lovingly. Anyway, I used to take her along on my weekly shopping trip as she didn't drive.
We didn't lock our cars in the "good old days". B. had completed her shopping, loaded groceries in the car and sat her ample bottom down.
He wasn't all that polite (per B.)- "What are you doing in my car???!!!"
Never one to back down, B gave it right back to him - "This is Jean's car!!!"
He pulled out his registration to convince her. As she told me the story, I was rolling hysterically. Being the creature of habit that I am, I always parked in the same area. That particular day, the lot was full so chose another one.
That unfortunate guy had the same model, color Toyota I had - too bad for him.
Anyway, RIP, B. You were a real character and I hope you don't mind if I post the occasional story of our friendship!