I have a customer who called a day or two after spilling some "water" on her Yamaha bass strings. She claimed she had only spilled water, but by the time new strings arrived a sticky residue was showing up around the agraffs and on some of the strings. I believe she really spilled 7-up or Sprite as was too embarassed to admit it. If soft drinks were spilled on the strings, I would expect it to show up as quickly as the water content evaporated and left the sticky syrup (probably a matter of hours after the spill).
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