^
Well, there you go. You can ask about every folding bill....where has it been? Some pretty rotten places, that's for sure!
As windy as it was around that area, I doubt that it had been there long enough for the dog to really foul it up that much.
I'm not really a germophobe but I did clean that $20 with Purell after picking it up..lol.
Actually, I have been aware of what those critters can carry for quite some time since I used to live in northern New Mexico, so your warning is spot on.
Makes me rethink my plans to spend part of the summer at NM state parks located up by Colorado.