They can be a troublesome thing, but they add so much to an exhibit: lights.
An exhibit actually looks drab without a wash of lights. But this short entry is about something we all need to have: basic repair skills.
When I got to the part of the AWMA booth assembly for Retalix that involved installing the lights, I found myself having to make sure they all worked. Some of the lights came out of the box and had to be assembled so that they worked.
Wires had to make contact. Contacts had to be in place. Lamps couldn't be broken. And the "twist-ons" had to twist on the contact bar so that they came on.
These seem like little things, but in my case, it meant the difference between having 6 lamps instead of 12.