Lemon tree

When I was walking down our street this morning, I was amazed to see a little lemon tree outside the front door of one of the houses! And it had four full grown lemons on it ...I go up and down this street at least twice every day, usually on my bicycle, and today I was walking, and I had never noticed it before ... I had to stop and stare - and snap it ... hence today's blip! I had only ever seen lemon trees in stately homes - never in a friend's garden !