Good point. I have used that method myself with a short piece of clear
tubing but I later replaced the lock. It never fell down by itself but I
was concerned that if it ever did I might lock myself out.

Mark

Alistair Bell wrote:

> The old and workable fix is to unscrew locking button and slip a small
> length of rubber tubing (snug fit) over screw portion of knob. When
> re-installed, the rubber tubing provides enough friction to keep the
> knob in the up position.
>
> Has worked for me for the last 8 years or so.
>
> Alistair