OK, here's a funny story. My friend needed some pins for our deca cycle and I gave him enough pins along w/ 19 gauge needles to draw up the fluid. Jackass, spiked with a 19 gauge in the deltoid. He had a bandage to prove it... lol...
I bought some 18s for drawing and I was shocked at how much bigger they were than 23s. They might as well be car axles. I cringe at the thought of actually having to use them.
I was an electrician and do know how wire is gauged and if it is anything similar... then I would have to agree with "TrialOr" .... not too bright there kids!!!