The lens cap.

[macfred]

When I first started using a rangefinder camera, yes, I did forget to take the lens cap off a few times. But not anymore. One must learn from one's mistakes, or one continues to repeat them. For me, removing the lens cap before using a camera is simply a procedure I do automatically. Like putting on a seat belt whenever I get behind the wheel in a car... I don't really think about it, I just do it.

Poor fellow, you lost many surprises and a lot of fun ...