Dripping Gasoline on Panel During Pit Stops?

My spare plastic gasoline containers always seem to leak when adding fuel to our '65 ABodies. Today I decided to think ahead and tape the area off first. Wouldn't you know it, first time I added from the 5 gallon plastic can and not a drop spilled out from the spout area of the can or from the fill opening of the vehicle. Well, no harm done, just pulled the tape back off like I planned to do anyway.

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At first glance, I would think the tape would trap some spilled gas and caused more harm to the paint by being trapped, until tape was removed, vs just running down and off and evaporating.

However, this does entertain the invention of a hard plastic removable partial funnel refueling "bib".:)