Spark Master,
Like the rest of us mate, you are out using tools and these little things are your livelihood, this is why I am loath to lend the darned things out.
You get one guy that loans a particular tool off of you, and never gives it back, chances are you will need that tool for your next job.
I have all of my tools engraved, with my name.
I own a heap of tools, not just Electrical/Lines tools, but Electronics, Plumbing, Building and HVAC tools too.
I feel sorry for the suspensions/shock absorbers in my Van!. [Linked Image]